Type Parameters:

K - the type of the header name.

V - the type of the header value.

T - the type to use for return values when the intention is to return this object.

All Superinterfaces:

Iterable<Map.Entry<K,V>>

All Known Subinterfaces:

Http2Headers

All Known Implementing Classes:

CharSequenceMap, DefaultHeaders, DefaultHeadersImpl, DefaultHttp2Headers, EmptyHeaders, EmptyHttp2Headers, ReadOnlyHttp2Headers
```
public interface Headers<K,V,T extends Headers<K,V,T>>
extends Iterable<Map.Entry<K,V>>
```
Common interface for Headers which represents a mapping of key to value. Duplicate keys may be allowed by implementations.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`T`	`add(Headers<? extends K,? extends V,?> headers)`	Adds all header names and values of `headers` to this object.
`T`	`add(K name, Iterable<? extends V> values)`	Adds new headers with the specified `name` and `values`.
`T`	`add(K name, V value)`	Adds a new header with the specified `name` and `value`.
`T`	`add(K name, V... values)`	Adds new headers with the specified `name` and `values`.
`T`	`addBoolean(K name, boolean value)`	Adds a new header.
`T`	`addByte(K name, byte value)`	Adds a new header.
`T`	`addChar(K name, char value)`	Adds a new header.
`T`	`addDouble(K name, double value)`	Adds a new header.
`T`	`addFloat(K name, float value)`	Adds a new header.
`T`	`addInt(K name, int value)`	Adds a new header.
`T`	`addLong(K name, long value)`	Adds a new header.
`T`	`addObject(K name, Iterable<?> values)`	Adds a new header with the specified name and values.
`T`	`addObject(K name, Object value)`	Adds a new header.
`T`	`addObject(K name, Object... values)`	Adds a new header with the specified name and values.
`T`	`addShort(K name, short value)`	Adds a new header.
`T`	`addTimeMillis(K name, long value)`	Adds a new header.
`T`	`clear()`	Removes all headers.
`boolean`	`contains(K name)`	Returns `true` if a header with the `name` exists, `false` otherwise.
`boolean`	`contains(K name, V value)`	Returns `true` if a header with the `name` and `value` exists, `false` otherwise.
`boolean`	`containsBoolean(K name, boolean value)`	Returns `true` if a header with the name and value exists.
`boolean`	`containsByte(K name, byte value)`	Returns `true` if a header with the name and value exists.
`boolean`	`containsChar(K name, char value)`	Returns `true` if a header with the name and value exists.
`boolean`	`containsDouble(K name, double value)`	Returns `true` if a header with the name and value exists.
`boolean`	`containsFloat(K name, float value)`	Returns `true` if a header with the name and value exists.
`boolean`	`containsInt(K name, int value)`	Returns `true` if a header with the name and value exists.
`boolean`	`containsLong(K name, long value)`	Returns `true` if a header with the name and value exists.
`boolean`	`containsObject(K name, Object value)`	Returns `true` if a header with the name and value exists.
`boolean`	`containsShort(K name, short value)`	Returns `true` if a header with the name and value exists.
`boolean`	`containsTimeMillis(K name, long value)`	Returns `true` if a header with the name and value exists.
`V`	`get(K name)`	Returns the value of a header with the specified name.
`V`	`get(K name, V defaultValue)`	Returns the value of a header with the specified name.
`List<V>`	`getAll(K name)`	Returns all values for the header with the specified name.
`List<V>`	`getAllAndRemove(K name)`	Returns all values for the header with the specified name and removes them from this object.
`V`	`getAndRemove(K name)`	Returns the value of a header with the specified name and removes it from this object.
`V`	`getAndRemove(K name, V defaultValue)`	Returns the value of a header with the specified name and removes it from this object.
`Boolean`	`getBoolean(K name)`	Returns the `boolean` value of a header with the specified name.
`boolean`	`getBoolean(K name, boolean defaultValue)`	Returns the `boolean` value of a header with the specified name.
`Boolean`	`getBooleanAndRemove(K name)`	Returns the `boolean` value of a header with the specified `name` and removes the header from this object.
`boolean`	`getBooleanAndRemove(K name, boolean defaultValue)`	Returns the `boolean` value of a header with the specified `name` and removes the header from this object.
`Byte`	`getByte(K name)`	Returns the `byte` value of a header with the specified name.
`byte`	`getByte(K name, byte defaultValue)`	Returns the `byte` value of a header with the specified name.
`Byte`	`getByteAndRemove(K name)`	Returns the `byte` value of a header with the specified `name` and removes the header from this object.
`byte`	`getByteAndRemove(K name, byte defaultValue)`	Returns the `byte` value of a header with the specified `name` and removes the header from this object.
`Character`	`getChar(K name)`	Returns the `char` value of a header with the specified name.
`char`	`getChar(K name, char defaultValue)`	Returns the `char` value of a header with the specified name.
`Character`	`getCharAndRemove(K name)`	Returns the `char` value of a header with the specified `name` and removes the header from this object.
`char`	`getCharAndRemove(K name, char defaultValue)`	Returns the `char` value of a header with the specified `name` and removes the header from this object.
`Double`	`getDouble(K name)`	Returns the `double` value of a header with the specified name.
`double`	`getDouble(K name, double defaultValue)`	Returns the `double` value of a header with the specified name.
`Double`	`getDoubleAndRemove(K name)`	Returns the `double` value of a header with the specified `name` and removes the header from this object.
`double`	`getDoubleAndRemove(K name, double defaultValue)`	Returns the `double` value of a header with the specified `name` and removes the header from this object.
`Float`	`getFloat(K name)`	Returns the `float` value of a header with the specified name.
`float`	`getFloat(K name, float defaultValue)`	Returns the `float` value of a header with the specified name.
`Float`	`getFloatAndRemove(K name)`	Returns the `float` value of a header with the specified `name` and removes the header from this object.
`float`	`getFloatAndRemove(K name, float defaultValue)`	Returns the `float` value of a header with the specified `name` and removes the header from this object.
`Integer`	`getInt(K name)`	Returns the `int` value of a header with the specified name.
`int`	`getInt(K name, int defaultValue)`	Returns the `int` value of a header with the specified name.
`Integer`	`getIntAndRemove(K name)`	Returns the `int` value of a header with the specified `name` and removes the header from this object.
`int`	`getIntAndRemove(K name, int defaultValue)`	Returns the `int` value of a header with the specified `name` and removes the header from this object.
`Long`	`getLong(K name)`	Returns the `long` value of a header with the specified name.
`long`	`getLong(K name, long defaultValue)`	Returns the `long` value of a header with the specified name.
`Long`	`getLongAndRemove(K name)`	Returns the `long` value of a header with the specified `name` and removes the header from this object.
`long`	`getLongAndRemove(K name, long defaultValue)`	Returns the `long` value of a header with the specified `name` and removes the header from this object.
`Short`	`getShort(K name)`	Returns the `short` value of a header with the specified name.
`short`	`getShort(K name, short defaultValue)`	Returns the `short` value of a header with the specified name.
`Short`	`getShortAndRemove(K name)`	Returns the `short` value of a header with the specified `name` and removes the header from this object.
`short`	`getShortAndRemove(K name, short defaultValue)`	Returns the `short` value of a header with the specified `name` and removes the header from this object.
`Long`	`getTimeMillis(K name)`	Returns the value of a header with the specified name in milliseconds.
`long`	`getTimeMillis(K name, long defaultValue)`	Returns the value of a header with the specified name in milliseconds.
`Long`	`getTimeMillisAndRemove(K name)`	Returns the value of a header with the specified `name` in milliseconds and removes the header from this object.
`long`	`getTimeMillisAndRemove(K name, long defaultValue)`	Returns the value of a header with the specified `name` in milliseconds and removes the header from this object.
`boolean`	`isEmpty()`	Returns `true` if `size()` equals `0`.
`Iterator<Map.Entry<K,V>>`	`iterator()`
`Set<K>`	`names()`	Returns a `Set` of all header names in this object.
`boolean`	`remove(K name)`	Removes all headers with the specified `name`.
`T`	`set(Headers<? extends K,? extends V,?> headers)`	Clears the current header entries and copies all header entries of the specified `headers`.
`T`	`set(K name, Iterable<? extends V> values)`	Sets a new header with the specified name and values.
`T`	`set(K name, V value)`	Sets a header with the specified name and value.
`T`	`set(K name, V... values)`	Sets a header with the specified name and values.
`T`	`setAll(Headers<? extends K,? extends V,?> headers)`	Retains all current headers but calls `#set(K, V)` for each entry in `headers`.
`T`	`setBoolean(K name, boolean value)`	Set the `name` to `value`.
`T`	`setByte(K name, byte value)`	Set the `name` to `value`.
`T`	`setChar(K name, char value)`	Set the `name` to `value`.
`T`	`setDouble(K name, double value)`	Set the `name` to `value`.
`T`	`setFloat(K name, float value)`	Set the `name` to `value`.
`T`	`setInt(K name, int value)`	Set the `name` to `value`.
`T`	`setLong(K name, long value)`	Set the `name` to `value`.
`T`	`setObject(K name, Iterable<?> values)`	Sets a header with the specified name and values.
`T`	`setObject(K name, Object value)`	Sets a new header.
`T`	`setObject(K name, Object... values)`	Sets a header with the specified name and values.
`T`	`setShort(K name, short value)`	Set the `name` to `value`.
`T`	`setTimeMillis(K name, long value)`	Set the `name` to `value`.
`int`	`size()`	Returns the number of headers in this object.

Methods inherited from interface java.lang.Iterable
forEach, spliterator

- Method Detail
  - get
```
V get(K name)
```
    Returns the value of a header with the specified name. If there is more than one value for the specified name, the first value in insertion order is returned.
    
    Parameters:
    
    name - the name of the header to retrieve
    
    Returns:
    
    the first header value if the header is found. null if there's no such header
  - get
```
V get(K name,
      V defaultValue)
```
    Returns the value of a header with the specified name. If there is more than one value for the specified name, the first value in insertion order is returned.
    
    Parameters:
    
    name - the name of the header to retrieve
    
    defaultValue - the default value
    
    Returns:
    
    the first header value or defaultValue if there is no such header
  - getAndRemove
```
V getAndRemove(K name)
```
    Returns the value of a header with the specified name and removes it from this object. If there is more than one value for the specified name, the first value in insertion order is returned.
    
    Parameters:
    
    name - the name of the header to retrieve
    
    Returns:
    
    the first header value or null if there is no such header
  - getAndRemove
```
V getAndRemove(K name,
               V defaultValue)
```
    Returns the value of a header with the specified name and removes it from this object. If there is more than one value for the specified name, the first value in insertion order is returned.
    
    Parameters:
    
    name - the name of the header to retrieve
    
    defaultValue - the default value
    
    Returns:
    
    the first header value or defaultValue if there is no such header
  - getAll
```
List<V> getAll(K name)
```
    Returns all values for the header with the specified name. The returned List can't be modified.
    
    Parameters:
    
    name - the name of the header to retrieve
    
    Returns:
    
    a List of header values or an empty List if no values are found.
  - getAllAndRemove
```
List<V> getAllAndRemove(K name)
```
    Returns all values for the header with the specified name and removes them from this object. The returned List can't be modified.
    
    Parameters:
    
    name - the name of the header to retrieve
    
    Returns:
    
    a List of header values or an empty List if no values are found.
  - getBoolean
```
Boolean getBoolean(K name)
```
    Returns the boolean value of a header with the specified name. If there is more than one value for the specified name, the first value in insertion order is returned.
    
    Parameters:
    
    name - the name of the header to retrieve
    
    Returns:
    
    the boolean value of the first value in insertion order or null if there is no such value or it can't be converted to boolean.
  - getBoolean
```
boolean getBoolean(K name,
                   boolean defaultValue)
```
    Returns the boolean value of a header with the specified name. If there is more than one value for the specified name, the first value in insertion order is returned.
    
    Parameters:
    
    name - the name of the header to retrieve
    
    defaultValue - the default value
    
    Returns:
    
    the boolean value of the first value in insertion order or defaultValue if there is no such value or it can't be converted to boolean.
  - getByte
```
Byte getByte(K name)
```
    Returns the byte value of a header with the specified name. If there is more than one value for the specified name, the first value in insertion order is returned.
    
    Parameters:
    
    name - the name of the header to retrieve
    
    Returns:
    
    the byte value of the first value in insertion order or null if there is no such value or it can't be converted to byte.
  - getByte
```
byte getByte(K name,
             byte defaultValue)
```
    Returns the byte value of a header with the specified name. If there is more than one value for the specified name, the first value in insertion order is returned.
    
    Parameters:
    
    name - the name of the header to retrieve
    
    defaultValue - the default value
    
    Returns:
    
    the byte value of the first value in insertion order or defaultValue if there is no such value or it can't be converted to byte.
  - getChar
```
Character getChar(K name)
```
    Returns the char value of a header with the specified name. If there is more than one value for the specified name, the first value in insertion order is returned.
    
    Parameters:
    
    name - the name of the header to retrieve
    
    Returns:
    
    the char value of the first value in insertion order or null if there is no such value or it can't be converted to char.
  - getChar
```
char getChar(K name,
             char defaultValue)
```
    Returns the char value of a header with the specified name. If there is more than one value for the specified name, the first value in insertion order is returned.
    
    Parameters:
    
    name - the name of the header to retrieve
    
    defaultValue - the default value
    
    Returns:
    
    the char value of the first value in insertion order or defaultValue if there is no such value or it can't be converted to char.
  - getShort
```
Short getShort(K name)
```
    Returns the short value of a header with the specified name. If there is more than one value for the specified name, the first value in insertion order is returned.
    
    Parameters:
    
    name - the name of the header to retrieve
    
    Returns:
    
    the short value of the first value in insertion order or null if there is no such value or it can't be converted to short.
  - getShort
```
short getShort(K name,
               short defaultValue)
```
    Returns the short value of a header with the specified name. If there is more than one value for the specified name, the first value in insertion order is returned.
    
    Parameters:
    
    name - the name of the header to retrieve
    
    defaultValue - the default value
    
    Returns:
    
    the short value of the first value in insertion order or defaultValue if there is no such value or it can't be converted to short.
  - getInt
```
Integer getInt(K name)
```
    Returns the int value of a header with the specified name. If there is more than one value for the specified name, the first value in insertion order is returned.
    
    Parameters:
    
    name - the name of the header to retrieve
    
    Returns:
    
    the int value of the first value in insertion order or null if there is no such value or it can't be converted to int.
  - getInt
```
int getInt(K name,
           int defaultValue)
```
    Returns the int value of a header with the specified name. If there is more than one value for the specified name, the first value in insertion order is returned.
    
    Parameters:
    
    name - the name of the header to retrieve
    
    defaultValue - the default value
    
    Returns:
    
    the int value of the first value in insertion order or defaultValue if there is no such value or it can't be converted to int.
  - getLong
```
Long getLong(K name)
```
    Returns the long value of a header with the specified name. If there is more than one value for the specified name, the first value in insertion order is returned.
    
    Parameters:
    
    name - the name of the header to retrieve
    
    Returns:
    
    the long value of the first value in insertion order or null if there is no such value or it can't be converted to long.
  - getLong
```
long getLong(K name,
             long defaultValue)
```
    Returns the long value of a header with the specified name. If there is more than one value for the specified name, the first value in insertion order is returned.
    
    Parameters:
    
    name - the name of the header to retrieve
    
    defaultValue - the default value
    
    Returns:
    
    the long value of the first value in insertion order or defaultValue if there is no such value or it can't be converted to long.
  - getFloat
```
Float getFloat(K name)
```
    Returns the float value of a header with the specified name. If there is more than one value for the specified name, the first value in insertion order is returned.
    
    Parameters:
    
    name - the name of the header to retrieve
    
    Returns:
    
    the float value of the first value in insertion order or null if there is no such value or it can't be converted to float.
  - getFloat
```
float getFloat(K name,
               float defaultValue)
```
    Returns the float value of a header with the specified name. If there is more than one value for the specified name, the first value in insertion order is returned.
    
    Parameters:
    
    name - the name of the header to retrieve
    
    defaultValue - the default value
    
    Returns:
    
    the float value of the first value in insertion order or defaultValue if there is no such value or it can't be converted to float.
  - getDouble
```
Double getDouble(K name)
```
    Returns the double value of a header with the specified name. If there is more than one value for the specified name, the first value in insertion order is returned.
    
    Parameters:
    
    name - the name of the header to retrieve
    
    Returns:
    
    the double value of the first value in insertion order or null if there is no such value or it can't be converted to double.
  - getDouble
```
double getDouble(K name,
                 double defaultValue)
```
    Returns the double value of a header with the specified name. If there is more than one value for the specified name, the first value in insertion order is returned.
    
    Parameters:
    
    name - the name of the header to retrieve
    
    defaultValue - the default value
    
    Returns:
    
    the double value of the first value in insertion order or defaultValue if there is no such value or it can't be converted to double.
  - getTimeMillis
```
Long getTimeMillis(K name)
```
    Returns the value of a header with the specified name in milliseconds. If there is more than one value for the specified name, the first value in insertion order is returned.
    
    Parameters:
    
    name - the name of the header to retrieve
    
    Returns:
    
    the milliseconds value of the first value in insertion order or null if there is no such value or it can't be converted to milliseconds.
  - getTimeMillis
```
long getTimeMillis(K name,
                   long defaultValue)
```
    Returns the value of a header with the specified name in milliseconds. If there is more than one value for the specified name, the first value in insertion order is returned.
    
    Parameters:
    
    name - the name of the header to retrieve
    
    defaultValue - the default value
    
    Returns:
    
    the milliseconds value of the first value in insertion order or defaultValue if there is no such value or it can't be converted to milliseconds.
  - getBooleanAndRemove
```
Boolean getBooleanAndRemove(K name)
```
    Returns the boolean value of a header with the specified name and removes the header from this object. If there is more than one value for the specified name, the first value in insertion order is returned. In any case all values for name are removed.
    If an exception occurs during the translation from type T all entries with name may still be removed.
    
    Parameters:
    
    name - the name of the header to retrieve
    
    Returns:
    
    the boolean value of the first value in insertion order or null if there is no such value or it can't be converted to boolean.
  - getBooleanAndRemove
```
boolean getBooleanAndRemove(K name,
                            boolean defaultValue)
```
    Returns the boolean value of a header with the specified name and removes the header from this object. If there is more than one value for the specified name, the first value in insertion order is returned. In any case all values for name are removed.
    If an exception occurs during the translation from type T all entries with name may still be removed.
    
    Parameters:
    
    name - the name of the header to search
    
    defaultValue - the default value
    
    Returns:
    
    the boolean value of the first value in insertion order or defaultValue if there is no such value or it can't be converted to boolean.
  - getByteAndRemove
```
Byte getByteAndRemove(K name)
```
    Returns the byte value of a header with the specified name and removes the header from this object. If there is more than one value for the specified name, the first value in insertion order is returned. In any case all values for name are removed.
    If an exception occurs during the translation from type T all entries with name may still be removed.
    
    Parameters:
    
    name - the name of the header to search
    
    Returns:
    
    the byte value of the first value in insertion order or null if there is no such value or it can't be converted to byte.
  - getByteAndRemove
```
byte getByteAndRemove(K name,
                      byte defaultValue)
```
    Returns the byte value of a header with the specified name and removes the header from this object. If there is more than one value for the specified name, the first value in insertion order is returned. In any case all values for name are removed.
    If an exception occurs during the translation from type T all entries with name may still be removed.
    
    Parameters:
    
    name - the name of the header to search
    
    defaultValue - the default value
    
    Returns:
    
    the byte value of the first value in insertion order or defaultValue if there is no such value or it can't be converted to byte.
  - getCharAndRemove
```
Character getCharAndRemove(K name)
```
    Returns the char value of a header with the specified name and removes the header from this object. If there is more than one value for the specified name, the first value in insertion order is returned. In any case all values for name are removed.
    If an exception occurs during the translation from type T all entries with name may still be removed.
    
    Parameters:
    
    name - the name of the header to search
    
    Returns:
    
    the char value of the first value in insertion order or null if there is no such value or it can't be converted to char.
  - getCharAndRemove
```
char getCharAndRemove(K name,
                      char defaultValue)
```
    Returns the char value of a header with the specified name and removes the header from this object. If there is more than one value for the specified name, the first value in insertion order is returned. In any case all values for name are removed.
    If an exception occurs during the translation from type T all entries with name may still be removed.
    
    Parameters:
    
    name - the name of the header to search
    
    defaultValue - the default value
    
    Returns:
    
    the char value of the first value in insertion order or defaultValue if there is no such value or it can't be converted to char.
  - getShortAndRemove
```
Short getShortAndRemove(K name)
```
    Returns the short value of a header with the specified name and removes the header from this object. If there is more than one value for the specified name, the first value in insertion order is returned. In any case all values for name are removed.
    If an exception occurs during the translation from type T all entries with name may still be removed.
    
    Parameters:
    
    name - the name of the header to search
    
    Returns:
    
    the short value of the first value in insertion order or null if there is no such value or it can't be converted to short.
  - getShortAndRemove
```
short getShortAndRemove(K name,
                        short defaultValue)
```
    Returns the short value of a header with the specified name and removes the header from this object. If there is more than one value for the specified name, the first value in insertion order is returned. In any case all values for name are removed.
    If an exception occurs during the translation from type T all entries with name may still be removed.
    
    Parameters:
    
    name - the name of the header to search
    
    defaultValue - the default value
    
    Returns:
    
    the short value of the first value in insertion order or defaultValue if there is no such value or it can't be converted to short.
  - getIntAndRemove
```
Integer getIntAndRemove(K name)
```
    Returns the int value of a header with the specified name and removes the header from this object. If there is more than one value for the specified name, the first value in insertion order is returned. In any case all values for name are removed.
    If an exception occurs during the translation from type T all entries with name may still be removed.
    
    Parameters:
    
    name - the name of the header to search
    
    Returns:
    
    the int value of the first value in insertion order or null if there is no such value or it can't be converted to int.
  - getIntAndRemove
```
int getIntAndRemove(K name,
                    int defaultValue)
```
    Returns the int value of a header with the specified name and removes the header from this object. If there is more than one value for the specified name, the first value in insertion order is returned. In any case all values for name are removed.
    If an exception occurs during the translation from type T all entries with name may still be removed.
    
    Parameters:
    
    name - the name of the header to search
    
    defaultValue - the default value
    
    Returns:
    
    the int value of the first value in insertion order or defaultValue if there is no such value or it can't be converted to int.
  - getLongAndRemove
```
Long getLongAndRemove(K name)
```
    Returns the long value of a header with the specified name and removes the header from this object. If there is more than one value for the specified name, the first value in insertion order is returned. In any case all values for name are removed.
    If an exception occurs during the translation from type T all entries with name may still be removed.
    
    Parameters:
    
    name - the name of the header to search
    
    Returns:
    
    the long value of the first value in insertion order or null if there is no such value or it can't be converted to long.
  - getLongAndRemove
```
long getLongAndRemove(K name,
                      long defaultValue)
```
    Returns the long value of a header with the specified name and removes the header from this object. If there is more than one value for the specified name, the first value in insertion order is returned. In any case all values for name are removed.
    If an exception occurs during the translation from type T all entries with name may still be removed.
    
    Parameters:
    
    name - the name of the header to search
    
    defaultValue - the default value
    
    Returns:
    
    the long value of the first value in insertion order or defaultValue if there is no such value or it can't be converted to long.
  - getFloatAndRemove
```
Float getFloatAndRemove(K name)
```
    Returns the float value of a header with the specified name and removes the header from this object. If there is more than one value for the specified name, the first value in insertion order is returned. In any case all values for name are removed.
    If an exception occurs during the translation from type T all entries with name may still be removed.
    
    Parameters:
    
    name - the name of the header to search
    
    Returns:
    
    the float value of the first value in insertion order or null if there is no such value or it can't be converted to float.
  - getFloatAndRemove
```
float getFloatAndRemove(K name,
                        float defaultValue)
```
    Returns the float value of a header with the specified name and removes the header from this object. If there is more than one value for the specified name, the first value in insertion order is returned. In any case all values for name are removed.
    If an exception occurs during the translation from type T all entries with name may still be removed.
    
    Parameters:
    
    name - the name of the header to search
    
    defaultValue - the default value
    
    Returns:
    
    the float value of the first value in insertion order or defaultValue if there is no such value or it can't be converted to float.
  - getDoubleAndRemove
```
Double getDoubleAndRemove(K name)
```
    Returns the double value of a header with the specified name and removes the header from this object. If there is more than one value for the specified name, the first value in insertion order is returned. In any case all values for name are removed.
    If an exception occurs during the translation from type T all entries with name may still be removed.
    
    Parameters:
    
    name - the name of the header to search
    
    Returns:
    
    the double value of the first value in insertion order or null if there is no such value or it can't be converted to double.
  - getDoubleAndRemove
```
double getDoubleAndRemove(K name,
                          double defaultValue)
```
    Returns the double value of a header with the specified name and removes the header from this object. If there is more than one value for the specified name, the first value in insertion order is returned. In any case all values for name are removed.
    If an exception occurs during the translation from type T all entries with name may still be removed.
    
    Parameters:
    
    name - the name of the header to search
    
    defaultValue - the default value
    
    Returns:
    
    the double value of the first value in insertion order or defaultValue if there is no such value or it can't be converted to double.
  - getTimeMillisAndRemove
```
Long getTimeMillisAndRemove(K name)
```
    Returns the value of a header with the specified name in milliseconds and removes the header from this object. If there is more than one value for the specified name, the first value in insertion order is returned. In any case all values for name are removed.
    If an exception occurs during the translation from type T all entries with name may still be removed.
    
    Parameters:
    
    name - the name of the header to retrieve
    
    Returns:
    
    the milliseconds value of the first value in insertion order or null if there is no such value or it can't be converted to milliseconds.
  - getTimeMillisAndRemove
```
long getTimeMillisAndRemove(K name,
                            long defaultValue)
```
    Returns the value of a header with the specified name in milliseconds and removes the header from this object. If there is more than one value for the specified name, the first value in insertion order is returned. In any case all values for name are removed.
    If an exception occurs during the translation from type T all entries with name may still be removed.
    
    Parameters:
    
    name - the name of the header to retrieve
    
    defaultValue - the default value
    
    Returns:
    
    the milliseconds value of the first value in insertion order or defaultValue if there is no such value or it can't be converted to milliseconds.
  - contains
```
boolean contains(K name)
```
    Returns true if a header with the name exists, false otherwise.
    
    Parameters:
    
    name - the header name
  - contains
```
boolean contains(K name,
                 V value)
```
    Returns true if a header with the name and value exists, false otherwise.
    The Object.equals(Object) method is used to test for equality of value.
    
    Parameters:
    
    name - the header name
    
    value - the header value of the header to find
  - containsObject
```
boolean containsObject(K name,
                       Object value)
```
    Returns true if a header with the name and value exists.
    
    Parameters:
    
    name - the header name
    
    value - the header value
    
    Returns:
    
    true if it contains it false otherwise
  - containsBoolean
```
boolean containsBoolean(K name,
                        boolean value)
```
    Returns true if a header with the name and value exists.
    
    Parameters:
    
    name - the header name
    
    value - the header value
    
    Returns:
    
    true if it contains it false otherwise
  - containsByte
```
boolean containsByte(K name,
                     byte value)
```
    Returns true if a header with the name and value exists.
    
    Parameters:
    
    name - the header name
    
    value - the header value
    
    Returns:
    
    true if it contains it false otherwise
  - containsChar
```
boolean containsChar(K name,
                     char value)
```
    Returns true if a header with the name and value exists.
    
    Parameters:
    
    name - the header name
    
    value - the header value
    
    Returns:
    
    true if it contains it false otherwise
  - containsShort
```
boolean containsShort(K name,
                      short value)
```
    Returns true if a header with the name and value exists.
    
    Parameters:
    
    name - the header name
    
    value - the header value
    
    Returns:
    
    true if it contains it false otherwise
  - containsInt
```
boolean containsInt(K name,
                    int value)
```
    Returns true if a header with the name and value exists.
    
    Parameters:
    
    name - the header name
    
    value - the header value
    
    Returns:
    
    true if it contains it false otherwise
  - containsLong
```
boolean containsLong(K name,
                     long value)
```
    Returns true if a header with the name and value exists.
    
    Parameters:
    
    name - the header name
    
    value - the header value
    
    Returns:
    
    true if it contains it false otherwise
  - containsFloat
```
boolean containsFloat(K name,
                      float value)
```
    Returns true if a header with the name and value exists.
    
    Parameters:
    
    name - the header name
    
    value - the header value
    
    Returns:
    
    true if it contains it false otherwise
  - containsDouble
```
boolean containsDouble(K name,
                       double value)
```
    Returns true if a header with the name and value exists.
    
    Parameters:
    
    name - the header name
    
    value - the header value
    
    Returns:
    
    true if it contains it false otherwise
  - containsTimeMillis
```
boolean containsTimeMillis(K name,
                           long value)
```
    Returns true if a header with the name and value exists.
    
    Parameters:
    
    name - the header name
    
    value - the header value
    
    Returns:
    
    true if it contains it false otherwise
  - size
```
int size()
```
    Returns the number of headers in this object.
  - isEmpty
```
boolean isEmpty()
```
    Returns true if size() equals 0.
  - names
```
Set<K> names()
```
    Returns a Set of all header names in this object. The returned Set cannot be modified.
  - add
```
T add(K name,
      V value)
```
    Adds a new header with the specified name and value.
    
    Parameters:
    
    name - the name of the header
    
    value - the value of the header
    
    Returns:
    
    this
  - add
```
T add(K name,
      Iterable<? extends V> values)
```
    Adds new headers with the specified name and values. This method is semantically equivalent to
    for (T value : values) { headers.add(name, value); }
    Parameters:
    
    name - the header name
    
    values - the values of the header
    
    Returns:
    
    this
  - add
```
T add(K name,
      V... values)
```
    Adds new headers with the specified name and values. This method is semantically equivalent to
    for (T value : values) { headers.add(name, value); }
    Parameters:
    
    name - the header name
    
    values - the values of the header
    
    Returns:
    
    this
  - addObject
```
T addObject(K name,
            Object value)
```
    Adds a new header. Before the value is added, it's converted to type T.
    
    Parameters:
    
    name - the header name
    
    value - the value of the header
    
    Returns:
    
    this
  - addObject
```
T addObject(K name,
            Iterable<?> values)
```
    Adds a new header with the specified name and values. This method is equivalent to
    for (Object v : values) { headers.addObject(name, v); }
    Parameters:
    
    name - the header name
    
    values - the value of the header
    
    Returns:
    
    this
  - addObject
```
T addObject(K name,
            Object... values)
```
    Adds a new header with the specified name and values. This method is equivalent to
    for (Object v : values) { headers.addObject(name, v); }
    Parameters:
    
    name - the header name
    
    values - the value of the header
    
    Returns:
    
    this
  - addBoolean
```
T addBoolean(K name,
             boolean value)
```
    Adds a new header.
    
    Parameters:
    
    name - the header name
    
    value - the value of the header
    
    Returns:
    
    this
  - addByte
```
T addByte(K name,
          byte value)
```
    Adds a new header.
    
    Parameters:
    
    name - the header name
    
    value - the value of the header
    
    Returns:
    
    this
  - addChar
```
T addChar(K name,
          char value)
```
    Adds a new header.
    
    Parameters:
    
    name - the header name
    
    value - the value of the header
    
    Returns:
    
    this
  - addShort
```
T addShort(K name,
           short value)
```
    Adds a new header.
    
    Parameters:
    
    name - the header name
    
    value - the value of the header
    
    Returns:
    
    this
  - addInt
```
T addInt(K name,
         int value)
```
    Adds a new header.
    
    Parameters:
    
    name - the header name
    
    value - the value of the header
    
    Returns:
    
    this
  - addLong
```
T addLong(K name,
          long value)
```
    Adds a new header.
    
    Parameters:
    
    name - the header name
    
    value - the value of the header
    
    Returns:
    
    this
  - addFloat
```
T addFloat(K name,
           float value)
```
    Adds a new header.
    
    Parameters:
    
    name - the header name
    
    value - the value of the header
    
    Returns:
    
    this
  - addDouble
```
T addDouble(K name,
            double value)
```
    Adds a new header.
    
    Parameters:
    
    name - the header name
    
    value - the value of the header
    
    Returns:
    
    this
  - addTimeMillis
```
T addTimeMillis(K name,
                long value)
```
    Adds a new header.
    
    Parameters:
    
    name - the header name
    
    value - the value of the header
    
    Returns:
    
    this
  - add
```
T add(Headers<? extends K,? extends V,?> headers)
```
    Adds all header names and values of headers to this object.
    
    Returns:
    
    this
    
    Throws:
    
    IllegalArgumentException - if headers == this.
  - set
```
T set(K name,
      V value)
```
    Sets a header with the specified name and value. Any existing headers with the same name are overwritten.
    
    Parameters:
    
    name - the header name
    
    value - the value of the header
    
    Returns:
    
    this
  - set
```
T set(K name,
      Iterable<? extends V> values)
```
    Sets a new header with the specified name and values. This method is equivalent to
    for (T v : values) { headers.addObject(name, v); }
    Parameters:
    
    name - the header name
    
    values - the value of the header
    
    Returns:
    
    this
  - set
```
T set(K name,
      V... values)
```
    Sets a header with the specified name and values. Any existing headers with this name are removed. This method is equivalent to:
    headers.remove(name); for (T v : values) { headers.add(name, v); }
    Parameters:
    
    name - the header name
    
    values - the value of the header
    
    Returns:
    
    this
  - setObject
```
T setObject(K name,
            Object value)
```
    Sets a new header. Any existing headers with this name are removed. Before the value is add, it's converted to type T.
    
    Parameters:
    
    name - the header name
    
    value - the value of the header
    
    Returns:
    
    this
    
    Throws:
    
    NullPointerException - if either name or value before or after its conversion is null.
  - setObject
```
T setObject(K name,
            Iterable<?> values)
```
    Sets a header with the specified name and values. Any existing headers with this name are removed. This method is equivalent to:
    headers.remove(name); for (Object v : values) { headers.addObject(name, v); }
    Parameters:
    
    name - the header name
    
    values - the values of the header
    
    Returns:
    
    this
  - setObject
```
T setObject(K name,
            Object... values)
```
    Sets a header with the specified name and values. Any existing headers with this name are removed. This method is equivalent to:
    headers.remove(name); for (Object v : values) { headers.addObject(name, v); }
    Parameters:
    
    name - the header name
    
    values - the values of the header
    
    Returns:
    
    this
  - setBoolean
```
T setBoolean(K name,
             boolean value)
```
    Set the name to value. This will remove all previous values associated with name.
    
    Parameters:
    
    name - The name to modify
    
    value - The value
    
    Returns:
    
    this
  - setByte
```
T setByte(K name,
          byte value)
```
    Set the name to value. This will remove all previous values associated with name.
    
    Parameters:
    
    name - The name to modify
    
    value - The value
    
    Returns:
    
    this
  - setChar
```
T setChar(K name,
          char value)
```
    Set the name to value. This will remove all previous values associated with name.
    
    Parameters:
    
    name - The name to modify
    
    value - The value
    
    Returns:
    
    this
  - setShort
```
T setShort(K name,
           short value)
```
    Set the name to value. This will remove all previous values associated with name.
    
    Parameters:
    
    name - The name to modify
    
    value - The value
    
    Returns:
    
    this
  - setInt
```
T setInt(K name,
         int value)
```
    Set the name to value. This will remove all previous values associated with name.
    
    Parameters:
    
    name - The name to modify
    
    value - The value
    
    Returns:
    
    this
  - setLong
```
T setLong(K name,
          long value)
```
    Set the name to value. This will remove all previous values associated with name.
    
    Parameters:
    
    name - The name to modify
    
    value - The value
    
    Returns:
    
    this
  - setFloat
```
T setFloat(K name,
           float value)
```
    Set the name to value. This will remove all previous values associated with name.
    
    Parameters:
    
    name - The name to modify
    
    value - The value
    
    Returns:
    
    this
  - setDouble
```
T setDouble(K name,
            double value)
```
    Set the name to value. This will remove all previous values associated with name.
    
    Parameters:
    
    name - The name to modify
    
    value - The value
    
    Returns:
    
    this
  - setTimeMillis
```
T setTimeMillis(K name,
                long value)
```
    Set the name to value. This will remove all previous values associated with name.
    
    Parameters:
    
    name - The name to modify
    
    value - The value
    
    Returns:
    
    this
  - set
```
T set(Headers<? extends K,? extends V,?> headers)
```
    Clears the current header entries and copies all header entries of the specified headers.
    
    Returns:
    
    this
  - setAll
```
T setAll(Headers<? extends K,? extends V,?> headers)
```
    Retains all current headers but calls #set(K, V) for each entry in headers.
    
    Parameters:
    
    headers - The headers used to #set(K, V) values in this instance
    
    Returns:
    
    this
  - remove
```
boolean remove(K name)
```
    Removes all headers with the specified name.
    
    Parameters:
    
    name - the header name
    
    Returns:
    
    true if at least one entry has been removed.
  - clear
```
T clear()
```
    Removes all headers. After a call to this method size() equals 0.
    
    Returns:
    
    this
  - iterator
```
Iterator<Map.Entry<K,V>> iterator()
```
    Specified by:
    
    iterator in interface Iterable<K>

Interface Headers<K,​V,​T extends Headers<K,​V,​T>>

Method Summary

Methods inherited from interface java.lang.Iterable

Method Detail

get

get

getAndRemove

getAndRemove

getAll

getAllAndRemove

getBoolean

getBoolean

getByte

getByte

getChar

getChar

getShort

getShort

getInt

getInt

getLong

getLong

getFloat

getFloat

getDouble

getDouble

getTimeMillis

getTimeMillis

getBooleanAndRemove

getBooleanAndRemove

getByteAndRemove

getByteAndRemove

getCharAndRemove

getCharAndRemove

getShortAndRemove

getShortAndRemove

getIntAndRemove

getIntAndRemove

getLongAndRemove

getLongAndRemove

getFloatAndRemove

getFloatAndRemove

getDoubleAndRemove

getDoubleAndRemove

getTimeMillisAndRemove

getTimeMillisAndRemove

contains

contains

containsObject

containsBoolean

containsByte

containsChar

containsShort

containsInt

containsLong

containsFloat

containsDouble

containsTimeMillis

size

isEmpty

names

add

add

add

addObject

addObject

addObject

addBoolean

addByte

addChar

addShort

addInt

addLong

addFloat

addDouble

addTimeMillis

add

set

set

set

Interface Headers<K,V,T extends Headers<K,V,T>>