org.springframework.binding.form.support
Class CachingFieldFaceSource

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java.lang.Object
  org.springframework.binding.form.support.CachingFieldFaceSource

All Implemented Interfaces:

FieldFaceSource

Direct Known Subclasses:

MessageSourceFieldFaceSource

public abstract class CachingFieldFaceSource
extends Object
implements FieldFaceSource

A convenience superclass for FieldFaceSource's that require caching to improve the performance of FieldFace lookup.

FieldFace retrieval is delegated to subclasses using the loadFieldFace(String, Object) method.

Author:

Oliver Hutchison, Mathias Broekelmann

Constructor Summary

protected

CachingFieldFaceSource()

Method Summary

FieldFace	getFieldFace(String field) Return the FieldFace for the field.
FieldFace	getFieldFace(String field, Object context) Return the FieldFace for the given field name and a context.
protected abstract FieldFace	loadFieldFace(String field, Object context) Loads the FieldFace for the given field path and context id.

Methods inherited from class java.lang.Object

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

Constructor Detail

CachingFieldFaceSource

protected CachingFieldFaceSource()

Method Detail

getFieldFace

public FieldFace getFieldFace(String field)

Description copied from interface: FieldFaceSource

Return the FieldFace for the field.

Specified by:

getFieldFace in interface FieldFaceSource

Parameters:

field - the form field

Returns:

the FieldFace for the given field (never null).

getFieldFace

public FieldFace getFieldFace(String field,
                              Object context)

Description copied from interface: FieldFaceSource

Return the FieldFace for the given field name and a context.

Specified by:

getFieldFace in interface FieldFaceSource

Parameters:

field - the field name

context - optional context for the field face

Returns:

the FieldFace for the given field (never null).

loadFieldFace

protected abstract FieldFace loadFieldFace(String field,
                                           Object context)

Loads the FieldFace for the given field path and context id. This value will be cached so performance need not be a concern of this method.

Parameters:

field - the form field path

context - optional context for which the FieldFace is being resolved

Returns:

the FieldFace for the given context id (never null).