method.java

一个java写的business process management系统

/*
 * Copyright (c) 2003, Alexander Greif
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the Flow4J-Eclipse project nor the names of its
 *       contributors may be used to endorse or promote products derived from
 *       this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGE.
 */

package net.orthanc.flow4j.model.codegen.javasrc.structure;

import java.io.IOException;
import java.io.Writer;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

import net.orthanc.flow4j.model.codegen.structure.ISrcStructure;

/**
 * @author agreif
 *
 * TODO
 * 
 * To change the template for this generated type comment go to
 * Window>Preferences>Java>Code Generation>Code and Comments
 */
public class Method implements ISrcStructure {

	private String methodName;
	private String returnType = "void";
	private List modifiers = new ArrayList();
	private List methodParameters = new ArrayList();
	private List throwsExceptionTypes;
	private CodeBlock codeBlock = new CodeBlock();

	/**
	 * Creates a Method instance with the given method name
	 * @param methodName the name of the method
	 */
	public Method(String methodName) {
		super();
		this.methodName = methodName;
	}

	/**
	 * TODO
	 * @return
	 */
	public String getName() {
		return methodName;
	}

	/**
	 * TODO
	 * @return
	 */
	public void addToCodeBlock(ISrcStructure fragment) {
		codeBlock.addFragment(fragment);
	}

	/**
	 * TODO
	 * @param returnType
	 */
	public void setReturnType(String returnType) {
		this.returnType = returnType;
	}

	/**
	 * Adds a parameter to this method
	 * @param parameter the parameter containing type and name
	 */
	public void addMethodParameter(MethodParameter parameter) {
		methodParameters.add(parameter);
	}

	/**
	 * Adds a modifier to the method.
	 * @param modifier the modifier
	 */
	public void addModifier(String modifier) {
		modifiers.add(modifier);
	}

	/**
	 * Adds an inner class.
	 * @param innerClass the inner class to add
	 */
	public void addInnerClass(JavaClass innerClass) {
		addToCodeBlock(innerClass);
	}

	/**
	 * @see net.orthanc.flow4j.model.codegen.javasrc.structure.ISrcStructure#serialize()
	 */
	public void serialize(Writer writer) throws IOException {
		for (Iterator iter = modifiers.iterator(); iter.hasNext();)
			writer.write((String) iter.next() + " ");

		writer.write(returnType + " " + methodName + "(");

		//	parameter
		for (Iterator iter = methodParameters.iterator(); iter.hasNext();) {
			((MethodParameter) iter.next()).serialize(writer);
			if (iter.hasNext())
				writer.write(", ");
		}

		writer.write(") ");

		//	throwsExceptionTypes
		if (throwsExceptionTypes != null) {
			writer.write("throws ");
			for (Iterator iter = throwsExceptionTypes.iterator();
				iter.hasNext();
				) {
				writer.write((String) iter.next());
				if (iter.hasNext())
					writer.write(", ");
			}
		}
		
		//	code block
		codeBlock.serialize(writer);
	}

	/**
	 * Returns the code block of this method
	 * @return the code block of this method
	 */
	public CodeBlock getCodeBlock() {
		return codeBlock;
	}

	public void addThrowsExceptionType(String type) {
		if (throwsExceptionTypes == null)
			throwsExceptionTypes = new ArrayList();

		throwsExceptionTypes.add(type);
	}

}