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org.apache.struts.faces.application
Class PropertyResolverImpl  

java.lang.Object
  javax.faces.el.PropertyResolver
      org.apache.struts.faces.application.PropertyResolverImpl

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public class PropertyResolverImpl

extends javax.faces.el.PropertyResolver

Custom PropertyResolver implementation that adds support for DynaBean property access to the facilities of the default PropertyResolver provided by JavaServer Faces.

This class implements the following specific rules:

• Indexed variants of each call are directly passed through to the PropertyResolver instance that we are wrapping.
• If the specified base object is an instance of DynaActionForm, and the requested property name is map, maintain compatibility with the way that JSP and JSTL expressions can access this property:
  • getValue() will return the result of calling getMap() on the base object.
  • setValue() will throw an exception, because the map of property values is a read-only property of the DynaActionForm class.
  • isReadOnly() returns true.
  • getType() returns the Class object for java.util.Map.
• If the specified base object is an instance of DynaBean, provide access to its named properties as follows:
  • getValue() will return the result of calling get() on the base object.
  • setValue() will call set() on the base object.
  • isReadOnly() returns false (because the DynaBean APIs provide no mechanism to make this determination, but most implementations will provide mutable properties).
  • getType() returns the Class object for the underlying dynamic property.
• Named variant calls with any other type of base object are passed through to the PropertyResolver that we are wrapping.

Version:

$Rev: 54934 $ $Date: 2004-10-16 18:07:50 +0100 (Sat, 16 Oct 2004) $

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Field Summary
private static org.apache.commons.logging.Log	log           The Log instance for this class.
private  javax.faces.el.PropertyResolver	resolver           The PropertyResolver instance that we are wrapping, which will be used to perform operations on beans that are not recognized by this class.

 

Constructor Summary

PropertyResolverImpl(javax.faces.el.PropertyResolver resolver)           Construct a new PropertyResolver instance, wrapping the specified instance using the Decorator pattern such that this class need implement only the new functionality it supports, and not need to re-implement the basic facilities.

 

Method Summary
private  org.apache.commons.beanutils.DynaProperty	getDynaProperty(org.apache.commons.beanutils.DynaBean bean, java.lang.String name)           Return the DynaProperty describing the specified property of the specified DynaBean, or null if there is no such property defined on the underlying DynaClass.
java.lang.Class	getType(java.lang.Object base, int index)           Return the java.lang.Class representing the type of value at the specified index of the specified base object, or null if this value is null.
java.lang.Class	getType(java.lang.Object base, java.lang.Object name)           Return the java.lang.Class representing the type of the specified property of the specified base object, if it can be determined; otherwise return null.
java.lang.Object	getValue(java.lang.Object base, int index)           Return the value at the specified index of the specified base object.
java.lang.Object	getValue(java.lang.Object base, java.lang.Object name)           Return the value of the property with the specified name from the specified base object.
boolean	isReadOnly(java.lang.Object base, int index)           Return true if the value at the specified index of the specified base object is known to be immutable; otherwise, return false.
boolean	isReadOnly(java.lang.Object base, java.lang.Object name)           Return true if the specified property of the specified base object is known to be immutable; otherwise, return false.
void	setValue(java.lang.Object base, int index, java.lang.Object value)           Set the value at the specified index of the specified base object.
void	setValue(java.lang.Object base, java.lang.Object name, java.lang.Object value)           Set the specified value of the property with the specified name on the specified base object.

 

Methods inherited from class java.lang.Object

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

 

Field Detail

log

private static final org.apache.commons.logging.Log log

The Log instance for this class.

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resolver

private javax.faces.el.PropertyResolver resolver

The PropertyResolver instance that we are wrapping, which will be used to perform operations on beans that are not recognized by this class.

Constructor Detail

PropertyResolverImpl

public PropertyResolverImpl(javax.faces.el.PropertyResolver resolver)

Construct a new PropertyResolver instance, wrapping the specified instance using the Decorator pattern such that this class need implement only the new functionality it supports, and not need to re-implement the basic facilities.

Method Detail

getValue

public java.lang.Object getValue(java.lang.Object base,
                                 java.lang.Object name)
                          throws javax.faces.el.PropertyNotFoundException

Return the value of the property with the specified name from the specified base object.

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getValue

public java.lang.Object getValue(java.lang.Object base,
                                 int index)
                          throws javax.faces.el.PropertyNotFoundException

Return the value at the specified index of the specified base object.

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setValue

public void setValue(java.lang.Object base,
                     java.lang.Object name,
                     java.lang.Object value)
              throws javax.faces.el.PropertyNotFoundException

Set the specified value of the property with the specified name on the specified base object.

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setValue

public void setValue(java.lang.Object base,
                     int index,
                     java.lang.Object value)
              throws javax.faces.el.PropertyNotFoundException

Set the value at the specified index of the specified base object.

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isReadOnly

public boolean isReadOnly(java.lang.Object base,
                          java.lang.Object name)
                   throws javax.faces.el.PropertyNotFoundException

Return true if the specified property of the specified base object is known to be immutable; otherwise, return false.

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isReadOnly

public boolean isReadOnly(java.lang.Object base,
                          int index)
                   throws javax.faces.el.PropertyNotFoundException

Return true if the value at the specified index of the specified base object is known to be immutable; otherwise, return false.

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getType

public java.lang.Class getType(java.lang.Object base,
                               java.lang.Object name)
                        throws javax.faces.el.PropertyNotFoundException

Return the java.lang.Class representing the type of the specified property of the specified base object, if it can be determined; otherwise return null.

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getType

public java.lang.Class getType(java.lang.Object base,
                               int index)
                        throws javax.faces.el.PropertyNotFoundException

Return the java.lang.Class representing the type of value at the specified index of the specified base object, or null if this value is null.

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getDynaProperty

private org.apache.commons.beanutils.DynaProperty getDynaProperty(org.apache.commons.beanutils.DynaBean bean,
                                                                  java.lang.String name)
                                                           throws javax.faces.el.PropertyNotFoundException

Return the DynaProperty describing the specified property of the specified DynaBean, or null if there is no such property defined on the underlying DynaClass.

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Home >> All >> org >> apache >> struts >> faces >> [ application overview ]	PREV CLASS  NEXT CLASS
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