Spring Framework example source code file (RefreshableScriptTargetSource.java)

This example Spring Framework source code file (RefreshableScriptTargetSource.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

beanfactoryrefreshabletargetsource, object, refreshablescripttargetsource, refreshablescripttargetsource, scriptfactory, scriptfactory, scriptsource, scriptsource, string, string

The Spring Framework RefreshableScriptTargetSource.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.scripting.support;

import org.springframework.aop.target.dynamic.BeanFactoryRefreshableTargetSource;
import org.springframework.beans.factory.BeanFactory;
import org.springframework.scripting.ScriptFactory;
import org.springframework.scripting.ScriptSource;
import org.springframework.util.Assert;

/**
 * Subclass of {@link BeanFactoryRefreshableTargetSource} that determines whether
 * a refresh is required through the given {@link ScriptFactory}.
 *
 * @author Rob Harrop
 * @author Juergen Hoeller
 * @author Mark Fisher
 * @since 2.0
 */
public class RefreshableScriptTargetSource extends BeanFactoryRefreshableTargetSource {

	private final ScriptFactory scriptFactory;

	private final ScriptSource scriptSource;

	private final boolean isFactoryBean;


	/**
	 * Create a new RefreshableScriptTargetSource.
	 * @param beanFactory the BeanFactory to fetch the scripted bean from
	 * @param beanName the name of the target bean
	 * @param scriptFactory the ScriptFactory to delegate to for determining
	 * whether a refresh is required
	 * @param scriptSource the ScriptSource for the script definition
	 * @param isFactoryBean whether the target script defines a FactoryBean
	 */
	public RefreshableScriptTargetSource(BeanFactory beanFactory, String beanName,
			ScriptFactory scriptFactory, ScriptSource scriptSource, boolean isFactoryBean) {

		super(beanFactory, beanName);
		Assert.notNull(scriptFactory, "ScriptFactory must not be null");
		Assert.notNull(scriptSource, "ScriptSource must not be null");
		this.scriptFactory = scriptFactory;
		this.scriptSource = scriptSource;
		this.isFactoryBean = isFactoryBean;
	}


	/**
	 * Determine whether a refresh is required through calling
	 * ScriptFactory's <code>requiresScriptedObjectRefresh method.
	 * @see ScriptFactory#requiresScriptedObjectRefresh(ScriptSource)
	 */
	protected boolean requiresRefresh() {
		return this.scriptFactory.requiresScriptedObjectRefresh(this.scriptSource);
	}

	/**
	 * Obtain a fresh target object, retrieving a FactoryBean if necessary.
	 */
	protected Object obtainFreshBean(BeanFactory beanFactory, String beanName) {
		return super.obtainFreshBean(beanFactory,
				(this.isFactoryBean ? BeanFactory.FACTORY_BEAN_PREFIX + beanName : beanName));
	}

}