org.databene.commons.accessor
Class NullSafeAccessor<C,V>

java.lang.Object
  org.databene.commons.accessor.AccessorProxy<C,V>
      org.databene.commons.accessor.NullSafeAccessor<C,V>

All Implemented Interfaces:

Accessor<C,V>, DependentAccessor<C,V>

Direct Known Subclasses:

NullSafeTypedAccessor

public abstract class NullSafeAccessor<C,V>
extends AccessorProxy<C,V>

Accessor wrapper that returns a predefined value if getValue() is invoked with a 'null' source.

Created: 26.06.2005 08:22:21

Author:

Volker Bergmann

Field Summary

Fields inherited from class org.databene.commons.accessor.AccessorProxy

realAccessor

Constructor Summary

NullSafeAccessor(Accessor<C,V> realAccessor, V nullValue)

Method Summary

V	getValue(C source)

Methods inherited from class org.databene.commons.accessor.AccessorProxy

getDependencies

Methods inherited from class java.lang.Object

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

Constructor Detail

NullSafeAccessor

public NullSafeAccessor(Accessor<C,V> realAccessor,
                        V nullValue)

Method Detail

getValue

public V getValue(C source)

Specified by:

getValue in interface Accessor<C,V>

Overrides:

getValue in class AccessorProxy<C,V>