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Spring Framework example source code file (PropertyValues.java)

This example Spring Framework source code file (PropertyValues.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Spring Framework tags/keywords

propertyvalue, propertyvalue, propertyvalues, propertyvalues

The Spring Framework PropertyValues.java source code

/*
 * Copyright 2002-2008 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.springframework.beans;

/**
 * Holder containing one or more {@link PropertyValue} objects,
 * typically comprising one update for a specific target bean.
 *
 * @author Rod Johnson
 * @author Juergen Hoeller
 * @since 13 May 2001
 * @see PropertyValue
 */
public interface PropertyValues {
   
	/** 
	 * Return an array of the PropertyValue objects held in this object.
	 */
	PropertyValue[] getPropertyValues();	
	
	/**
	 * Return the property value with the given name, if any.
	 * @param propertyName the name to search for
	 * @return the property value, or <code>null
	 */
	PropertyValue getPropertyValue(String propertyName);

	/**
	 * Is there a property value (or other processing entry) for this property?
	 * @param propertyName the name of the property we're interested in
	 * @return whether there is a property value for this property
	 */
	boolean contains(String propertyName);

	/**
	 * Does this holder not contain any PropertyValue objects at all?
	 */
	boolean isEmpty();

	/**
	 * Return the changes since the previous PropertyValues.
	 * Subclasses should also override <code>equals.
	 * @param old old property values
	 * @return PropertyValues updated or new properties.
	 * Return empty PropertyValues if there are no changes.
	 * @see java.lang.Object#equals
	 */
	PropertyValues changesSince(PropertyValues old);

}

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