oracle.cabo.ui.data.bind
Class NestedBoundValue

java.lang.Object
  |
  +--oracle.cabo.ui.data.bind.NestedBoundValue

All Implemented Interfaces:

BoundValue

public class NestedBoundValue

extends java.lang.Object

implements BoundValue

This BoundValue is constructed with other BoundValues. It uses the getValue(..)s of the other BoundValues to construct its own value.

Constructor Summary

NestedBoundValue(java.lang.Object key)
The key will be used to select a value from the current data object on the RenderingContext

NestedBoundValue(java.lang.Object key, BoundValue dataObject)

Method Summary

java.lang.Object

getValue(RenderingContext context) if any of the bound values used by this BoundValue return null, then this BoundValue also returns null.

Methods inherited from class java.lang.Object

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

Constructor Detail

NestedBoundValue

public NestedBoundValue(java.lang.Object key)

The key will be used to select a value from the current data object on the RenderingContext

Parameters:

key - if this is a BoundValue, the value obtained by calling its getValue method, will be used as the key

See Also:

RenderingContext.getCurrentDataObject()

NestedBoundValue

public NestedBoundValue(java.lang.Object key,
                        BoundValue dataObject)

Parameters:

key - maybe null. If this is a BoundValue, the value obtained by calling its getValue method, will be used as the key.

dataObject - the value of this BoundValue must be a DataObject. key will be used with this DataObject to produce a return value for getValue.

See Also:

DataObject

Method Detail

getValue

public java.lang.Object getValue(RenderingContext context)

if any of the bound values used by this BoundValue return null, then this BoundValue also returns null.

Specified by:

getValue in interface BoundValue

Returns:

Uses the key with the dataObject to compute the return value. If key is null, then the dataObject itself is returned.

See Also:

BoundValue.getValue(RenderingContext), DataObject.selectValue(RenderingContext, Object key)