Re: [Springframework-developer] PropertyPathFactoryBean

[Guillaume P. <gpo...@gl...>]

Colin,

Did you have any time to look at my prototype, are you interested in a
contribution from me in that area?

Guillaume

----- Original Message ----- 
From: "Colin Sampaleanu" <col...@ex...>
To: <spr...@li...>
Sent: Wednesday, October 06, 2004 9:44 AM
Subject: Re: [Springframework-developer] PropertyPathFactoryBean


> Guillaume,
>
> Thanks for doing this. I personally can't look at this this week, but can 
> probably look at it next. Your mechanism of using a new <ognl> tag is 
> abviously completely backwards compatible. The other option we were 
> discussing before was in the regular value tag, recognizing a prefix like 
> "ognl:" as an indication that the given value is an ognl expression.
>
> I would actually like to also investigate Janino
>  http://www.janino.net/
> as an alternative to OGNL. I've used OGNL a fair amount with Tapestry, and 
> it's quite good. That said, the Janino approach of generating bytecode 
> directly from the expressions is pretty intriguing, in terms of 
> performance implications.
>
> Colin
>
> Guillaume Poirier wrote:
>
>> Concerning OGNL, I took at stab at it to see how hard it would be to 
>> integrate.  My prototype seems to work correctly, with a few adjustments 
>> needed.  Would you guys be interested in a contribution from me?
>>
>> My implementation requires modifications in two areas.  First, the a 
>> <ognl> tag should be added in the DTD, available everywhere you can use 
>> the <value> tag.  In the XmlBeanDefinitionParser, the <ognl> tag would be 
>> converted to an OGNL implementation of a new Expression interface that 
>> define a class to resolve the expression given a context/BeanFactory.
>>
>> Then, the BeanFactory implementation would need to be modified, when it 
>> resolve ManagedList, RuntimeBeanReference, a new check would be added for 
>> the Expression class, where the expression would be resolved from the 
>> context.
>>
>> However, I encountered a minor issue while creating my prototype.  The 
>> resolution where the expression would be converted to a value is in 
>> AbstractAutowireCapableBeanFactory, which doesn't implement 
>> ListableBeanFactory.  It causes a problem because OGNL ask for a Map as 
>> context, and it calls the keySet() method on it, thus the map passed to 
>> OGNL must be able to return all the bean names in the context.  A quick 
>> fix is to cast the AbstractAutowireCapableBeanFactory instance to 
>> ListableBeanFactory, since all of Spring's concrete BeanFactory 
>> implements ListableBeanFactory anyway, but it's somewhat an hack, and if 
>> someone extend AbstractAutowireCapableBeanFactory and doesn't implement 
>> ListableBeanFactory, then the OGNL wouldn't work properly.  I guess it's 
>> unlikely though.
>>
>> I've attached the patch to this email, with the prototype for OGNL.  It's 
>> working, but it doesn't have any documenation, decent tests, etc.  If you 
>> guys are interested in my code, I can polish it, document it, and add a 
>> better test coverage.
>>
>> Let me know what you think.
>>
>> Regards,
>> Guillaume
>>
>> ----- Original Message ----- From: "Colin Sampaleanu" <col...@ex...>
>> To: <spr...@li...>
>> Sent: Monday, October 04, 2004 1:32 PM
>> Subject: Re: [Springframework-developer] PropertyPathFactoryBean
>>
>>
>>> Good stuff. It overlaps of course with the mythical OGNL or expression 
>>> support which keeps getting pushed back, but in the meantime provides 
>>> some of the benefits for pretty little extra code...
>>>
>>>
>>> jürgen höller [werk3AT] wrote:
>>>
>>>> I've just added a PropertyPathFactoryBean, following this suggestion:
>>>>
>>>> http://opensource.atlassian.com/projects/spring/browse/SPR-343
>>>>
>>>>
>>>> Usage examples:
>>>>
>>>> // target bean to be referenced by name
>>>> <bean id="tb" class="org.springframework.beans.TestBean" 
>>>> singleton="false">
>>>>   <property name="age"><value>10</value></property>
>>>>   <property name="spouse">
>>>>     <bean class="org.springframework.beans.TestBean">
>>>>       <property name="age"><value>11</value></property>
>>>>     </bean>
>>>>   </property>
>>>> </bean>
>>>>
>>>> // will result in 12, which is the value of property 'age' of the inner 
>>>> bean
>>>> <bean id="propertyPath1" 
>>>> class="org.springframework.beans.factory.config.PropertyPathFactoryBean">
>>>>   <property name="targetObject">
>>>>     <bean class="org.springframework.beans.TestBean">
>>>>       <property name="age"><value>12</value></property>
>>>>     </bean>
>>>>   </property>
>>>>   <property name="propertyPath"><value>age</value></property>
>>>> </bean>
>>>>
>>>> // will result in 11, which is the value of property 'spouse.age' of 
>>>> bean 'tb'
>>>> <bean id="propertyPath2" 
>>>> class="org.springframework.beans.factory.config.PropertyPathFactoryBean">
>>>>   <property name="targetBeanName"><value>tb</value></property>
>>>>   <property name="propertyPath"><value>spouse.age</value></property>
>>>> </bean>
>>>>
>>>> // will result in 10, which is the value of property 'age' of bean 'tb'
>>>> <bean id="tb.age" 
>>>> class="org.springframework.beans.factory.config.PropertyPathFactoryBean"/>
>>>>
>>>>
>>>> The last one, interpreting the bean name as 'beanName.property' 
>>>> pattern, is quite concise...
>>>>
>>>
>>>
>>>
>>>
>>> -------------------------------------------------------
>>> This SF.net email is sponsored by: IT Product Guide on ITManagersJournal
>>> Use IT products in your business? Tell us what you think of them. Give 
>>> us
>>> Your Opinions, Get Free ThinkGeek Gift Certificates! Click to find out 
>>> more
>>> http://productguide.itmanagersjournal.com/guidepromo.tmpl
>>> _______________________________________________
>>> Springframework-developer mailing list
>>> Spr...@li...
>>> https://lists.sourceforge.net/lists/listinfo/springframework-developer
>>
>> Index: org/springframework/beans/factory/OgnlTests.java
>> ===================================================================
>> RCS file: org/springframework/beans/factory/OgnlTests.java
>> diff -N org/springframework/beans/factory/OgnlTests.java
>> --- /dev/null    1 Jan 1970 00:00:00 -0000
>> +++ org/springframework/beans/factory/OgnlTests.java    1 Jan 1970 
>> 00:00:00 -0000
>> @@ -0,0 +1,79 @@
>> +/*
>> + * $Id$
>> + * $Log$
>> + */
>> +package org.springframework.beans.factory;
>> +
>> +import java.util.Arrays;
>> +import java.util.List;
>> +
>> +import junit.framework.TestCase;
>> +
>> +import org.springframework.beans.factory.xml.XmlBeanFactory;
>> +
>> +/**
>> + * @author Guillaume Poirier
>> + * @version $Revision$, $Date$
>> + * @since 2004-10-04
>> + */
>> +public class OgnlTests extends TestCase {
>> +  public void testOgnlSupport() throws Exception {
>> +    XmlBeanFactory factory = new XmlBeanFactory(OgnlTests.class
>> +        .getResourceAsStream("ognl.xml"));
>> +    Bean test = (Bean) factory.getBean("test");
>> +    Object list = factory.getBean("list");
>> +    assertSame(test.one, list);
>> +    assertEquals(test.two, new Integer(Bean.CONSTANT));
>> +    assertSame(test.three, test.getProperty());
>> +    List expectedList = Arrays.asList(new Object[] { "Item0", null, 
>> null,
>> +        test.getProperty() });
>> +    assertEquals(expectedList, list);
>> +  }
>> +
>> +  public static class Bean {
>> +    public static final int CONSTANT = 15;
>> +    private Object one;
>> +    private Object two;
>> +    private Object three;
>> +
>> +    public Bean() {
>> +    }
>> +
>> +    public Bean(Object arg) {
>> +      throw new UnsupportedOperationException();
>> +    }
>> +
>> +    public Object getOne() {
>> +      return one;
>> +    }
>> +
>> +    public void setOne(Object one) {
>> +      this.one = one;
>> +    }
>> +
>> +    public Object getTwo() {
>> +      return two;
>> +    }
>> +
>> +    public void setTwo(Object two) {
>> +      this.two = two;
>> +    }
>> +
>> +    public Object getThree() {
>> +      return three;
>> +    }
>> +
>> +    public void setThree(Object three) {
>> +      this.three = three;
>> +    }
>> +
>> +    public String getProperty() {
>> +      return "property!!";
>> +    }
>> +
>> +    public String toString() {
>> +      return "OgnlTests$Bean[1='" + one + "', 2='" + two + "', 3='" + 
>> three
>> +          + "']";
>> +    }
>> +  }
>> +}
>> Index: org/springframework/beans/factory/ognl.xml
>> ===================================================================
>> RCS file: org/springframework/beans/factory/ognl.xml
>> diff -N org/springframework/beans/factory/ognl.xml
>> --- /dev/null    1 Jan 1970 00:00:00 -0000
>> +++ org/springframework/beans/factory/ognl.xml    1 Jan 1970 
>> 00:00:00 -0000
>> @@ -0,0 +1,40 @@
>> +<?xml version="1.0" encoding="UTF-8"?>
>> +<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" 
>> "http://www.springframework.org/dtd/spring-beans.dtd">
>> +
>> +<beans>
>> +  <bean id="list" class="java.util.ArrayList">
>> +    <constructor-arg>
>> +      <list>
>> +        <value>Item0</value>
>> +        <ognl>#test.one</ognl>
>> +        <ognl>#test.two</ognl>
>> +        <ognl>#test.property</ognl>
>> +      </list>
>> +    </constructor-arg>
>> +  </bean>
>> +  +  <bean id="test" 
>> class="org.springframework.beans.factory.OgnlTests$Bean">
>> +    <property name="one">
>> +      <ognl>#list</ognl>
>> +    </property>
>> +    <property name="two">
>> + 
>> <ognl>@org.springframework.beans.factory.OgnlTests$Bean@CONSTANT</ognl>
>> +    </property>
>> +    <property name="three">
>> +      <ognl>#test.property</ognl>
>> +    </property>
>> +  </bean>
>> +  +  <!--
>> +    - This bean should not be instanciated by the BeanFactory.
>> +    - If it was mistakenly instanciated, an 
>> UnsupportedOperationException
>> +    - would be thrown by the constructor.
>> +    -->
>> +  <bean id="dummy" 
>> class="org.springframework.beans.factory.OgnlTests$Bean">
>> +    <constructor-arg>
>> +      <list>
>> +        <value>Item0</value>
>> +      </list>
>> +    </constructor-arg>
>> +  </bean>
>> +</beans>
>>
>> Index: 
>> org/springframework/beans/factory/support/AbstractAutowireCapableBeanFactory.java
>> ===================================================================
>> RCS file: 
>> /cvsroot/springframework/spring/src/org/springframework/beans/factory/support/AbstractAutowireCapableBeanFactory.java,v
>> retrieving revision 1.40
>> diff -u -r1.40 AbstractAutowireCapableBeanFactory.java
>> --- 
>> org/springframework/beans/factory/support/AbstractAutowireCapableBeanFactory.java 
>> 4 Oct 2004 07:59:32 -0000    1.40
>> +++ 
>> org/springframework/beans/factory/support/AbstractAutowireCapableBeanFactory.java 
>> 6 Oct 2004 04:05:56 -0000
>> @@ -43,6 +43,7 @@
>> import org.springframework.beans.factory.BeanNameAware;
>> import org.springframework.beans.factory.DisposableBean;
>> import org.springframework.beans.factory.InitializingBean;
>> +import org.springframework.beans.factory.ListableBeanFactory;
>> import org.springframework.beans.factory.UnsatisfiedDependencyException;
>> import 
>> org.springframework.beans.factory.config.AutowireCapableBeanFactory;
>> import org.springframework.beans.factory.config.BeanDefinition;
>> @@ -839,10 +840,14 @@
>>             // May need to resolve contained runtime references.
>>             return resolveManagedSet(beanName, mergedBeanDefinition, 
>> argName, (Set) value);
>>         }
>> -        else if (value instanceof ManagedMap) {
>> -            // May need to resolve contained runtime references.
>> -            return resolveManagedMap(beanName, mergedBeanDefinition, 
>> argName, (Map) value);
>> -        }
>> +    else if (value instanceof ManagedMap) {
>> +      // May need to resolve contained runtime references.
>> +      return resolveManagedMap(beanName, mergedBeanDefinition, argName, 
>> (Map) value);
>> +    }
>> +    else if (value instanceof Expression) {
>> +      // Need to resolve Expression.
>> +      return resolveExpression(beanName, mergedBeanDefinition, argName, 
>> (Expression) value);
>> +    }
>>         else {
>>             // no need to resolve value
>>             return value;
>> @@ -866,6 +871,13 @@
>>         return getObjectForSharedInstance(innerBeanName, innerBean);
>>     }
>>
>> +  private Object resolveExpression(
>> +      String beanName, RootBeanDefinition mergedBeanDefinition, String 
>> argName, Expression expr)
>> +      throws BeansException {
>> +    // TODO Casting to ListableBeanFactory is kind of an hack
>> +    return expr.resolve((ListableBeanFactory) this);
>> +  }
>> +      /**
>>      * Resolve a reference to another bean in the factory.
>>      */
>> Index: 
>> org/springframework/beans/factory/xml/DefaultXmlBeanDefinitionParser.java
>> ===================================================================
>> RCS file: 
>> /cvsroot/springframework/spring/src/org/springframework/beans/factory/xml/DefaultXmlBeanDefinitionParser.java,v
>> retrieving revision 1.41
>> diff -u -r1.41 DefaultXmlBeanDefinitionParser.java
>> --- 
>> org/springframework/beans/factory/xml/DefaultXmlBeanDefinitionParser.java 
>> 4 Oct 2004 08:12:00 -0000    1.41
>> +++ 
>> org/springframework/beans/factory/xml/DefaultXmlBeanDefinitionParser.java 
>> 6 Oct 2004 04:05:56 -0000
>> @@ -49,6 +49,7 @@
>> import org.springframework.beans.factory.support.ManagedMap;
>> import org.springframework.beans.factory.support.ManagedSet;
>> import org.springframework.beans.factory.support.MethodOverrides;
>> +import org.springframework.beans.factory.support.OgnlExpression;
>> import org.springframework.beans.factory.support.ReplaceOverride;
>> import org.springframework.beans.factory.support.RootBeanDefinition;
>> import org.springframework.core.io.Resource;
>> @@ -132,6 +133,7 @@
>>     public static final String PROP_ELEMENT = "prop";
>>     public static final String VALUE_ELEMENT = "value";
>>     public static final String NULL_ELEMENT = "null";
>> +  public static final String OGNL_ELEMENT = "ognl";
>>
>>
>>     protected final Log logger = LogFactory.getLog(getClass());
>> @@ -554,10 +556,14 @@
>>             // it's a literal value
>>             return getTextValue(ele, beanName);
>>         }
>> -        else if (ele.getTagName().equals(NULL_ELEMENT)) {
>> -            // it's a distinguished null value
>> -            return null;
>> -        }
>> +    else if (ele.getTagName().equals(NULL_ELEMENT)) {
>> +      // it's a distinguished null value
>> +      return null;
>> +    }
>> +    else if (ele.getTagName().equals(OGNL_ELEMENT)) {
>> +      // it's an OGNL expression
>> +      return getOgnlExpression(ele, beanName);
>> +    }
>>         throw new BeanDefinitionStoreException(
>>                 this.resource, beanName, "Unknown subelement of 
>> <property>: <" + ele.getTagName() + ">");
>>     }
>> @@ -633,24 +639,29 @@
>>      * Make the horrible DOM API slightly more bearable:
>>      * get the text value we know this element contains.
>>      */
>> -    protected String getTextValue(Element ele, String beanName) {
>> -        StringBuffer value = new StringBuffer();
>> -        NodeList nl = ele.getChildNodes();
>> -        for (int i = 0; i < nl.getLength(); i++) {
>> -            Node item = nl.item(i);
>> -            if (item instanceof org.w3c.dom.CharacterData) {
>> -                if (!(item instanceof Comment)) {
>> -                    value.append(item.getNodeValue());
>> -                }
>> -            }
>> -            else {
>> -                throw new BeanDefinitionStoreException(
>> -                        this.resource, beanName,
>> -                        "<value> element is just allowed to have text 
>> and comment nodes, not: " + item.getClass().getName());
>> -            }
>> -        }
>> -        return value.toString();
>> -    }
>> +  protected String getTextValue(Element ele, String beanName) {
>> +    StringBuffer value = new StringBuffer();
>> +    NodeList nl = ele.getChildNodes();
>> +    for (int i = 0; i < nl.getLength(); i++) {
>> +      Node item = nl.item(i);
>> +      if (item instanceof org.w3c.dom.CharacterData) {
>> +        if (!(item instanceof Comment)) {
>> +          value.append(item.getNodeValue());
>> +        }
>> +      }
>> +      else {
>> +        throw new BeanDefinitionStoreException(
>> +            this.resource, beanName,
>> +            "<value> element is just allowed to have text and comment 
>> nodes, not: " + item.getClass().getName());
>> +      }
>> +    }
>> +    return value.toString();
>> +  }
>> +  +  protected OgnlExpression getOgnlExpression(Element ele, String 
>> beanName) {
>> +    String value = getTextValue(ele, beanName);
>> +    return new OgnlExpression(value);
>> +  }
>>
>>     protected int getDependencyCheck(String att) {
>>         int dependencyCheckCode = 
>> RootBeanDefinition.DEPENDENCY_CHECK_NONE;
>> Index: org/springframework/beans/factory/xml/spring-beans.dtd
>> ===================================================================
>> RCS file: 
>> /cvsroot/springframework/spring/src/org/springframework/beans/factory/xml/spring-beans.dtd,v
>> retrieving revision 1.41
>> diff -u -r1.41 spring-beans.dtd
>> --- org/springframework/beans/factory/xml/spring-beans.dtd    5 Oct 2004 
>> 08:37:53 -0000    1.41
>> +++ org/springframework/beans/factory/xml/spring-beans.dtd    6 Oct 2004 
>> 04:05:57 -0000
>> @@ -280,7 +280,7 @@
>> -->
>> <!ELEMENT constructor-arg (
>>     description?,
>> -    (bean | ref | idref | list | set | map | props | value | null)
>> +    (bean | ref | idref | list | set | map | props | value | null | 
>> ognl)
>> )>
>>
>> <!--
>> @@ -313,7 +313,7 @@
>> -->
>> <!ELEMENT property (
>>     description?,
>> -    (bean | ref | idref | list | set | map | props | value | null)
>> +    (bean | ref | idref | list | set | map | props | value | null | 
>> ognl)
>> )>
>>
>> <!--
>> @@ -435,7 +435,7 @@
>>     is automatically performed by the BeanFactory.
>> -->
>> <!ELEMENT list (
>> -    (bean | ref | idref | list | set | map | props | value | null)*
>> +    (bean | ref | idref | list | set | map | props | value | null | 
>> ognl)*
>> )>
>>
>> <!--
>> @@ -444,7 +444,7 @@
>>     although references will be strongly typed.
>> -->
>> <!ELEMENT set (
>> -    (bean | ref | idref | list | set | map | props | value | null)*
>> +    (bean | ref | idref | list | set | map | props | value | null | 
>> ognl)*
>> )>
>>
>> <!--
>> @@ -460,7 +460,7 @@
>>     The name of the property is given by the "key" attribute.
>> -->
>> <!ELEMENT entry (
>> -    (bean | ref | idref | list | set | map | props | value | null)
>> +    (bean | ref | idref | list | set | map | props | value | null | 
>> ognl)
>> )>
>>
>> <!--
>> @@ -508,3 +508,5 @@
>>     null value unless a special PropertyEditor does so.
>> -->
>> <!ELEMENT null (#PCDATA)>
>> +
>> +<!ELEMENT ognl (#PCDATA)>
>> Index: org/springframework/beans/factory/support/Expression.java
>> ===================================================================
>> RCS file: org/springframework/beans/factory/support/Expression.java
>> diff -N org/springframework/beans/factory/support/Expression.java
>> --- /dev/null    1 Jan 1970 00:00:00 -0000
>> +++ org/springframework/beans/factory/support/Expression.java    1 Jan 
>> 1970 00:00:00 -0000
>> @@ -0,0 +1,16 @@
>> +/*
>> + * $Id$
>> + * $Log$
>> + */
>> +package org.springframework.beans.factory.support;
>> +
>> +import org.springframework.beans.factory.ListableBeanFactory;
>> +
>> +/**
>> + * @author Guillaume Poirier
>> + * @version $Revision$, $Date$
>> + * @since 2004-10-05
>> + */
>> +public interface Expression {
>> +  public Object resolve(ListableBeanFactory factory);
>> +}
>> Index: org/springframework/beans/factory/support/OgnlExpression.java
>> ===================================================================
>> RCS file: org/springframework/beans/factory/support/OgnlExpression.java
>> diff -N org/springframework/beans/factory/support/OgnlExpression.java
>> --- /dev/null    1 Jan 1970 00:00:00 -0000
>> +++ org/springframework/beans/factory/support/OgnlExpression.java    1 
>> Jan 1970 00:00:00 -0000
>> @@ -0,0 +1,50 @@
>> +/*
>> + * $Id$
>> + * $Log$
>> + */
>> +package org.springframework.beans.factory.support;
>> +
>> +import java.util.Map;
>> +
>> +import org.springframework.beans.factory.BeanCreationException;
>> +import org.springframework.beans.factory.ListableBeanFactory;
>> +
>> +import ognl.Ognl;
>> +import ognl.OgnlException;
>> +
>> +/**
>> + * @author Guillaume Poirier
>> + * @version $Revision$, $Date$
>> + * @since 2004-10-05
>> + */
>> +public class OgnlExpression implements Expression {
>> +
>> +  private Object expr;
>> +
>> +  public OgnlExpression(String value) {
>> +    try {
>> +      expr = Ognl.parseExpression(value);
>> +    } catch (OgnlException e) {
>> +      throw new BeanCreationException("Failled to parse OGNL 
>> expression", e);
>> +    }
>> +  }
>> +
>> +  /*
>> +   * (non-Javadoc)
>> +   * +   * @see 
>> org.springframework.beans.factory.support.Expression#getValue(java.util.Map)
>> +   */
>> +  public Object resolve(ListableBeanFactory factory) {
>> +    try {
>> +      Map ctx = new OgnlExpressionContext(factory);
>> +      return Ognl.getValue(expr, ctx, (Object) null);
>> +    } catch (OgnlException e) {
>> +      throw new BeanCreationException("Failled to resolve OGNL 
>> expression", e);
>> +    }
>> +  }
>> +  +  public String toString() {
>> +    return "OgnlExpression[value='" + expr.toString() + "']";
>> +  }
>> +
>> +}
>> Index: 
>> org/springframework/beans/factory/support/OgnlExpressionContext.java
>> ===================================================================
>> RCS file: 
>> org/springframework/beans/factory/support/OgnlExpressionContext.java
>> diff -N 
>> org/springframework/beans/factory/support/OgnlExpressionContext.java
>> --- /dev/null    1 Jan 1970 00:00:00 -0000
>> +++ org/springframework/beans/factory/support/OgnlExpressionContext.java 
>> 1 Jan 1970 00:00:00 -0000
>> @@ -0,0 +1,161 @@
>> +/*
>> + * $Id$
>> + * $Log$
>> + */
>> +package org.springframework.beans.factory.support;
>> +
>> +import java.util.Collection;
>> +import java.util.HashSet;
>> +import java.util.Map;
>> +import java.util.Set;
>> +
>> +import ognl.OgnlContext;
>> +
>> +import org.springframework.beans.factory.ListableBeanFactory;
>> +
>> +/**
>> + * @author Guillaume Poirier
>> + * @version $Revision$, $Date$
>> + * @since 2004-10-05
>> + */
>> +public class OgnlExpressionContext extends OgnlContext {
>> +
>> +  private ListableBeanFactory factory;
>> +
>> +  public OgnlExpressionContext(ListableBeanFactory factory) {
>> +    this.factory = factory;
>> +    if (factory == null) {
>> +      throw new NullPointerException("factory");
>> +    }
>> +  }
>> +
>> +  /*
>> +   * (non-Javadoc)
>> +   * +   * @see java.util.Map#size()
>> +   */
>> +  public int size() {
>> +    throw new UnsupportedOperationException();
>> +  }
>> +
>> +  /*
>> +   * (non-Javadoc)
>> +   * +   * @see java.util.Map#clear()
>> +   */
>> +  public void clear() {
>> +    throw new UnsupportedOperationException();
>> +  }
>> +
>> +  /*
>> +   * (non-Javadoc)
>> +   * +   * @see java.util.Map#isEmpty()
>> +   */
>> +  public boolean isEmpty() {
>> +    throw new UnsupportedOperationException();
>> +  }
>> +
>> +  /*
>> +   * (non-Javadoc)
>> +   * +   * @see java.util.Map#containsKey(java.lang.Object)
>> +   */
>> +  public boolean containsKey(Object key) {
>> +    return super.containsKey(key) ? true : factory.containsBean((String) 
>> key);
>> +  }
>> +
>> +  /*
>> +   * (non-Javadoc)
>> +   * +   * @see java.util.Map#containsValue(java.lang.Object)
>> +   */
>> +  public boolean containsValue(Object value) {
>> +    throw new UnsupportedOperationException();
>> +  }
>> +
>> +  /*
>> +   * (non-Javadoc)
>> +   * +   * @see java.util.Map#values()
>> +   */
>> +  public Collection values() {
>> +    throw new UnsupportedOperationException();
>> +  }
>> +
>> +  /*
>> +   * (non-Javadoc)
>> +   * +   * @see java.util.Map#putAll(java.util.Map)
>> +   */
>> +  public void putAll(Map t) {
>> +    throw new UnsupportedOperationException();
>> +  }
>> +
>> +  /*
>> +   * (non-Javadoc)
>> +   * +   * @see java.util.Map#entrySet()
>> +   */
>> +  public Set entrySet() {
>> +    throw new UnsupportedOperationException();
>> +  }
>> +
>> +  /*
>> +   * (non-Javadoc)
>> +   * +   * @see java.util.Map#keySet()
>> +   */
>> +  public Set keySet() {
>> +    HashSet set = new HashSet(super.keySet());
>> +    String[] names = factory.getBeanDefinitionNames();
>> +    for (int i = 0, n = names.length; i < n; i++) {
>> +      set.add(names[i]);
>> +    }
>> +    return set;
>> +  }
>> +
>> +  /*
>> +   * (non-Javadoc)
>> +   * +   * @see java.util.Map#get(java.lang.Object)
>> +   */
>> +  public Object get(Object key) {
>> +    Object value = super.get(key);
>> +    return value != null ? value : factory.getBean((String) key);
>> +  }
>> +
>> +  /*
>> +   * (non-Javadoc)
>> +   * +   * @see java.util.Map#remove(java.lang.Object)
>> +   */
>> +  public Object remove(Object key) {
>> +    throw new UnsupportedOperationException();
>> +  }
>> +
>> +  /*
>> +   * (non-Javadoc)
>> +   * +   * @see java.util.Map#put(java.lang.Object, java.lang.Object)
>> +   */
>> +  public Object put(Object key, Object value) {
>> +    throw new UnsupportedOperationException();
>> +  }
>> +
>> +  public Map getValues() {
>> +    throw new UnsupportedOperationException();
>> +  }
>> +
>> +  public void setValues(Map value) {
>> +    throw new UnsupportedOperationException();
>> +  }
>> +
>> +  public boolean equals(Object o) {
>> +    return o == this;
>> +  }
>> +
>> +  public int hashCode() {
>> +    return System.identityHashCode(this);
>> +  }
>> +}
>>
>
>
>
>
> -------------------------------------------------------
> This SF.net email is sponsored by: IT Product Guide on ITManagersJournal
> Use IT products in your business? Tell us what you think of them. Give us
> Your Opinions, Get Free ThinkGeek Gift Certificates! Click to find out 
> more
> http://productguide.itmanagersjournal.com/guidepromo.tmpl
> _______________________________________________
> Springframework-developer mailing list
> Spr...@li...
> https://lists.sourceforge.net/lists/listinfo/springframework-developer