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PropertyValue.java
Upload User: jiancairen
Upload Date: 2007-08-27
Package Size: 26458k
Code Size: 3k
Category:
Java Develop
Development Platform:
Java
- /*
- * Copyright 2002-2004 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;
- import java.io.Serializable;
- /**
- * Class to hold information and value for an individual property.
- * Using an object here, rather than just storing all properties in a
- * map keyed by property name, allows for more flexibility, and the
- * ability to handle indexed properties etc in a special way if necessary.
- *
- * <p>Note that the value doesn't need to be the final required type:
- * A BeanWrapper implementation should handle any necessary conversion, as
- * this object doesn't know anything about the objects it will be applied to.
- *
- * @author Rod Johnson
- * @since 13 May 2001
- * @see PropertyValues
- * @see BeanWrapper
- */
- public class PropertyValue implements Serializable {
- /** Property name */
- private final String name;
- /** Value of the property */
- private final Object value;
- /**
- * Create new PropertyValue.
- * @param name name of the property
- * @param value value of the property (possibly before type conversion)
- */
- public PropertyValue(String name, Object value) {
- if (name == null) {
- throw new IllegalArgumentException("Property name cannot be null");
- }
- this.name = name;
- this.value = value;
- }
- /**
- * Return the name of the property.
- */
- public String getName() {
- return name;
- }
- /**
- * Return the value of the property.
- * <p>Note that type conversion will <i>not</i> have occurred here.
- * It is the responsibility of the BeanWrapper implementation to
- * perform type conversion.
- */
- public Object getValue() {
- return value;
- }
- public String toString() {
- return "PropertyValue: name='" + this.name + "'; value=[" + this.value + "]";
- }
- public boolean equals(Object other) {
- if (this == other) {
- return true;
- }
- if (!(other instanceof PropertyValue)) {
- return false;
- }
- PropertyValue otherPv = (PropertyValue) other;
- return (this.name.equals(otherPv.name) &&
- ((this.value == null && otherPv.value == null) || this.value.equals(otherPv.value)));
- }
- public int hashCode() {
- return this.name.hashCode() * 29 + (this.value != null ? this.value.hashCode() : 0);
- }
- }