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org.mentawai.filter
Class VOFilter  

java.lang.Object
  org.mentawai.filter.VOFilter

All Implemented Interfaces:

org.mentawai.core.Filter

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public class VOFilter

extends java.lang.Object

implements org.mentawai.core.Filter

A filter that tries to populate a bean with the action input values. Use this filter if you want to provide your action with a ready-to-use bean instead of a bunch of action input values. This filter tries to inject all the action input values in a Java object through setters. It can also inject directly in the bean's attributes, even if the field is private.

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Field Summary
private  java.util.Map	cache
private  java.lang.String	key
private  java.lang.Class	klass
private  boolean	tryField

 

Constructor Summary

VOFilter(java.lang.Class klass)           Creates a VOFilter that will try to create an object with the given class and populate this object with the action input values.

VOFilter(java.lang.Class klass, boolean tryField)           Creates a VOFilter that will try to create an object with the given class and populate this object with the action input values.

VOFilter(java.lang.Class klass, java.lang.String key)           Creates a VOFilter that will try to create an object with the given class and populate this object with the action input values.

VOFilter(java.lang.Class klass, java.lang.String key, boolean tryField)           Creates a VOFilter that will try to create an object with the given class and populate this object with the action input values.

 

Method Summary
private  java.lang.Object	createObject()
void	destroy()           Gives a chance to the filter to deallocalte any resources before it is destroyed.
java.lang.String	filter(org.mentawai.core.InvocationChain chain)           Executes the filter.
private  void	setValue(java.lang.Object bean, java.lang.String name, java.lang.Object value)

 

Methods inherited from class java.lang.Object

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

 

Field Detail

klass

private java.lang.Class klass

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key

private java.lang.String key

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cache

private java.util.Map cache

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tryField

private boolean tryField

Constructor Detail

VOFilter

public VOFilter(java.lang.Class klass)

Creates a VOFilter that will try to create an object with the given class and populate this object with the action input values.

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VOFilter

public VOFilter(java.lang.Class klass,
                boolean tryField)

Creates a VOFilter that will try to create an object with the given class and populate this object with the action input values. If tryField is true and it cannot find a setter for the input value, it will try to directly access the attribute, even if it is a private field.

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VOFilter

public VOFilter(java.lang.Class klass,
                java.lang.String key)

Creates a VOFilter that will try to create an object with the given class and populate this object with the action input values. The object will be placed in the action input with the given key.

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VOFilter

public VOFilter(java.lang.Class klass,
                java.lang.String key,
                boolean tryField)

Creates a VOFilter that will try to create an object with the given class and populate this object with the action input values. The object will be placed in the action input with the given key. If tryField is true and it cannot find a setter for the input value, it will try to directly access the attribute, even if it is a private field.

Method Detail

createObject

private java.lang.Object createObject()

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setValue

private void setValue(java.lang.Object bean,
                      java.lang.String name,
                      java.lang.Object value)

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filter

public java.lang.String filter(org.mentawai.core.InvocationChain chain)
                        throws java.lang.Exception

Description copied from interface: org.mentawai.core.Filter

Executes the filter.

Specified by:

filter in interface org.mentawai.core.Filter

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destroy

public void destroy()

Description copied from interface: org.mentawai.core.Filter

Gives a chance to the filter to deallocalte any resources before it is destroyed. This is called when the web application is stopped, in other words, this has nothing to do with garbage collection.

Specified by:

destroy in interface org.mentawai.core.Filter

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