com.nimbusds.oauth2.sdk.id

Class State

java.lang.Object

com.nimbusds.oauth2.sdk.id.Identifier

com.nimbusds.oauth2.sdk.id.State

All Implemented Interfaces:

Serializable, Comparable<Identifier>, net.minidev.json.JSONAware

@Immutable
public final class State
extends Identifier

Opaque value used to maintain state between a request and a callback. Also serves as a protection against XSRF attacks, among other uses.

See Also:

Serialized Form

Field Summary

Fields inherited from class com.nimbusds.oauth2.sdk.id.Identifier

DEFAULT_BYTE_LENGTH

Constructor Summary

Constructors

Constructor and Description
State() Creates a new state with a randomly generated 256-bit (32-byte) value, Base64URL-encoded.
State(int byteLength) Creates a new state with a randomly generated value of the specified byte length, Base64URL-encoded.
State(String value) Creates a new state with the specified value.

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object object)
static State	parse(String s) Parses a state from the specified string.

Methods inherited from class com.nimbusds.oauth2.sdk.id.Identifier

compareTo, getValue, hashCode, toJSONString, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

State

public State(String value)

Creates a new state with the specified value.

Parameters:

value - The state value. Must not be null or empty string.

State

public State(int byteLength)

Creates a new state with a randomly generated value of the specified byte length, Base64URL-encoded.

Parameters:

byteLength - The byte length of the value to generate. Must be greater than one.

State

public State()

Creates a new state with a randomly generated 256-bit (32-byte) value, Base64URL-encoded.

Method Detail

equals

public boolean equals(Object object)

Overrides:

equals in class Identifier

parse

public static State parse(String s)

Parses a state from the specified string.

Parameters:

s - The string to parse, null or empty if no state is specified.

Returns:

The state, null if the parsed string was null or empty.