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javax.faces.component
Interface TransientStateHelper

All Superinterfaces:

TransientStateHolder

public interface TransientStateHelper
extends TransientStateHolder

Define a Map-like contract that makes it easier for components to implement TransientStateHolder. Each UIComponent in the view will return an implementation of this interface from its UIComponent#getTransientStateHelper method.

The values retrieved or saved through getTransient(java.lang.Object) or putTransient(java.lang.Object, java.lang.Object) will not be preserved between requests.

Since:

2.1

Method Summary

java.lang.Object	getTransient(java.lang.Object key) Return the value currently associated with the specified key if any.
java.lang.Object	getTransient(java.lang.Object key, java.lang.Object defaultValue) Performs the same logic as getTransient(java.lang.Object) } but if no value is found, this will return the specified defaultValue
java.lang.Object	putTransient(java.lang.Object key, java.lang.Object value) Return the previously stored value and store the specified key/value pair.

Methods inherited from interface javax.faces.component.TransientStateHolder

restoreTransientState, saveTransientState

Method Detail

getTransient

java.lang.Object getTransient(java.lang.Object key)

Return the value currently associated with the specified key if any.

Parameters:

key - the key for which the value should be returned.

Since:

2.1

getTransient

java.lang.Object getTransient(java.lang.Object key,
                              java.lang.Object defaultValue)

Performs the same logic as getTransient(java.lang.Object) } but if no value is found, this will return the specified defaultValue

Parameters:

key - the key for which the value should be returned.

defaultValue - the value to return if no value is found in the call to get().

Since:

2.1

putTransient

java.lang.Object putTransient(java.lang.Object key,
                              java.lang.Object value)

Return the previously stored value and store the specified key/value pair. This is intended to store data that would otherwise reside in an instance variable on the component.

Parameters:

key - the key for the value

value - the value

Since:

2.1