oracle.cabo.servlet.state
Class StateImpl

java.lang.Object
  |
  +--oracle.cabo.servlet.state.StateImpl

All Implemented Interfaces:

MutableState, java.io.Serializable, State

public abstract class StateImpl

extends java.lang.Object

implements MutableState

A default implementation of the State interface.

See Also:

Serialized Form

Constructor Summary

StateImpl()
Creates a StateImpl.

Method Summary

void	expire() Invalidate this state object.
abstract java.lang.String	getID() Returns the ID of this state.
abstract StateManager	getManager() Gets the state manager that created and maintains this State.
java.lang.Object	getValue(java.lang.Object key) Gets a value stored on the State.
boolean	isExpired() Tests whether the State has been expired.
java.util.Enumeration	keys() Returns an enumeration of value keys, or null if none have been added.
void	putValue(java.lang.Object key, java.lang.Object value) Stores a value on the MutableState.
java.lang.String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

StateImpl

public StateImpl()

Creates a StateImpl.

Method Detail

expire

public void expire()

Description copied from interface: State

Invalidate this state object. Once a State has been invalidated, it can no longer be retrieved from its StateManager.

Specified by:

expire in interface State

isExpired

public boolean isExpired()

Description copied from interface: State

Tests whether the State has been expired.

Specified by:

isExpired in interface State

getID

public abstract java.lang.String getID()

Description copied from interface: State

Returns the ID of this state.

Specified by:

getID in interface State

getManager

public abstract StateManager getManager()

Description copied from interface: State

Gets the state manager that created and maintains this State.

Specified by:

getManager in interface State

getValue

public java.lang.Object getValue(java.lang.Object key)

Description copied from interface: State

Gets a value stored on the State.

Specified by:

getValue in interface State

Following copied from interface: oracle.cabo.servlet.state.State

See Also:

MutableState.putValue(java.lang.Object, java.lang.Object)

putValue

public void putValue(java.lang.Object key,
                     java.lang.Object value)

Description copied from interface: MutableState

Stores a value on the MutableState. Null values are allowed.

Specified by:

putValue in interface MutableState

keys

public java.util.Enumeration keys()

Returns an enumeration of value keys, or null if none have been added.

Specified by:

keys in interface State

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object