Headers

Class for creating and managing HTTP Headers.

Constructors

Name	Description
`Headers()`	Default constructor.
`Headers(Map<String, List<String>> headers)`	Constructor that creates a new instance using a given Map.
`Headers(Headers h)`	Copy Constructor.

Name	Description	Return Type
`has(String headerName)`	Use to check if the given name is present in headers.	`boolean`
`names()`	Returns a Set containing all header names.	`Set<String>`
`value(String headerName)`	Returns the first value associated with a given header name, or null if the header name is not found.	`String`
`values(String headerName)`	Returns a List of all values associated with a given header name, or null if the header name is not found.	`List<String>`
`asSimpleMap()`	Returns a Map of the headers, giving only one value for each header name.	`Map<String, String>`
`asMultimap()`	Returns a simulated MultiMap of the headers.	`Map<String, List<String>>`
`cloneHeaderMap(Map<String, List<String>> headerMap)`	Clones a header map.	`Map<String, List<String>>`
`add(String headerName, String value)`	Adds a value for a header name to this object.	`void`
`add(String headerName, List<String> values)`	Adds a List of values for a header name to this object.	`void`
`addAllFromMap(Map<String, String> headers)`	Adds values from a Map to this object.	`void`
`addAllFromMultiMap(Map<String, List<String>> headers)`	Adds values from a simulated Multi-Map to this object.	`void`
`addAll(Headers headers)`	Adds all the entries in a Headers object to this object.	`void`
`remove(String headerName)`	Removes the mapping for a header name if it is present.	`List<String>`