org.apache.tapestry5.internal.services
Class PersistentFieldBundleImpl

java.lang.Object
  org.apache.tapestry5.internal.services.PersistentFieldBundleImpl

All Implemented Interfaces:

PersistentFieldBundle

public class PersistentFieldBundleImpl
extends Object
implements PersistentFieldBundle

Constructor Summary

PersistentFieldBundleImpl(Collection<PersistentFieldChange> changes)

Method Summary

boolean	containsValue(String componentId, String fieldName) Checks to see if a persistent value has been stored for the indicated component and field.
Object	getValue(String componentId, String fieldName)

Methods inherited from class java.lang.Object

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

Constructor Detail

PersistentFieldBundleImpl

public PersistentFieldBundleImpl(Collection<PersistentFieldChange> changes)

Method Detail

containsValue

public boolean containsValue(String componentId,
                             String fieldName)

Description copied from interface: PersistentFieldBundle

Checks to see if a persistent value has been stored for the indicated component and field. TODO: This method can probably be removed; it doesn't look like its used (instead, we if check getValue() returns null).

Specified by:

containsValue in interface PersistentFieldBundle

Parameters:

componentId - the nested id of the component (within the page), may be null or blank for the root component of the page

fieldName - the name of the field whose value was persisted

Returns:

true if a change has been stored

getValue

public Object getValue(String componentId,
                       String fieldName)

Specified by:

getValue in interface PersistentFieldBundle

Parameters:

componentId - the nested if of the component (within the page), may be null or blank for the root component of the page

fieldName - the name of the field whose value was persisted

Returns:

the persisted value, possibly null