org.apache.wicket.injection

Class CompoundFieldValueFactory

java.lang.Object

org.apache.wicket.injection.CompoundFieldValueFactory

All Implemented Interfaces:

IFieldValueFactory

public class CompoundFieldValueFactory
extends Object
implements IFieldValueFactory

Compound implementation of IFieldValueFactory. This field value factory will keep trying added factories until one returns a non-null value or all are tried.

Author:

Igor Vaynberg (ivaynberg)

See Also:

IFieldValueFactory

Constructor Summary

Constructors

Constructor and Description
CompoundFieldValueFactory(IFieldValueFactory[] factories) Constructor
CompoundFieldValueFactory(IFieldValueFactory f1, IFieldValueFactory f2) Constructor
CompoundFieldValueFactory(List<IFieldValueFactory> factories) Constructor

Method Summary

Methods

Modifier and Type	Method and Description
void	addFactory(IFieldValueFactory factory) Adds a factory to the compound factory
Object	getFieldValue(Field field, Object fieldOwner) Returns the value the field will be set to
boolean	supportsField(Field field) Returns true if the factory can generate a value for the field, false otherwise.

Methods inherited from class java.lang.Object

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

Constructor Detail

CompoundFieldValueFactory

public CompoundFieldValueFactory(IFieldValueFactory[] factories)

Constructor

Parameters:

factories -

CompoundFieldValueFactory

public CompoundFieldValueFactory(List<IFieldValueFactory> factories)

Constructor

Parameters:

factories -

CompoundFieldValueFactory

public CompoundFieldValueFactory(IFieldValueFactory f1,
                         IFieldValueFactory f2)

Constructor

Parameters:

f1 -

f2 -

Method Detail

addFactory

public void addFactory(IFieldValueFactory factory)

Adds a factory to the compound factory

Parameters:

factory -

getFieldValue

public Object getFieldValue(Field field,
                   Object fieldOwner)

Description copied from interface: IFieldValueFactory

Returns the value the field will be set to

Specified by:

getFieldValue in interface IFieldValueFactory

Parameters:

field - field being injected

fieldOwner - instance of object being injected

Returns:

new field value

See Also:

IFieldValueFactory.getFieldValue(java.lang.reflect.Field, java.lang.Object)

supportsField

public boolean supportsField(Field field)

Description copied from interface: IFieldValueFactory

Returns true if the factory can generate a value for the field, false otherwise. If this method returns false, getFieldValue() will not be called on this factory

Specified by:

supportsField in interface IFieldValueFactory

Parameters:

field - field

Returns:

true if the factory can generate a value for the field, false otherwise

See Also:

IFieldValueFactory.supportsField(java.lang.reflect.Field)