compositebuilder.java

来自「Java的面向对象数据库系统的源代码」· Java 代码 · 共 79 行

// You can redistribute this software and/or modify it under the terms of
// the Ozone Library License version 1 published by ozone-db.org.
//
// The original code and portions created by SMB are
// Copyright (C) 1997-@year@ by SMB GmbH. All rights reserved.
//
// $Id$
package org.ozoneDB.tools.OPP.srcgen.builder;

import org.ozoneDB.tools.OPP.srcgen.ClassBuilder;
import org.ozoneDB.tools.OPP.srcgen.BuilderException;
import org.ozoneDB.tools.OPP.message.MessageWriter;
import org.ozoneDB.tools.OPP.message.ForkMessageWriter;

import java.util.Set;
import java.util.HashSet;
import java.util.Iterator;

/**
 * The composite builder allows building multiple structures in parallel from a single
 * source of direction.
 * @author Joakim Ohlrogge
 */
public class CompositeBuilder implements ClassBuilder {
    private Set builders;

    public void init(MessageWriter msgWriter) {
        // initialized all sub builders with a fork msg writer.
        // The Fork writer makes sure all messages are grouped by sub builder.
        for (Iterator iter = builders.iterator(); iter.hasNext();) {
            ((ClassBuilder) iter.next()).init(new ForkMessageWriter(msgWriter));
        }
    }

    public void beginClass(int modifier, String fullName, String superClass, String interfaces[]) throws BuilderException {
        for (Iterator iter = builders.iterator(); iter.hasNext();) {
            ((ClassBuilder) iter.next()).beginClass(modifier, fullName, superClass, interfaces);
        }
    }

    public void makeConstructor(int modifier, ClassBuilder.Parameter parameters[], String exceptions[]) throws BuilderException {
        for (Iterator iter = builders.iterator(); iter.hasNext();) {
            ((ClassBuilder) iter.next()).makeConstructor(modifier, parameters, exceptions);
        }
    }

    public void makeMethod(int modifier, String name, ClassBuilder.Parameter parameters[], String returnType, String exceptions[], int lockLevel) throws BuilderException {
        for (Iterator iter = builders.iterator(); iter.hasNext();) {
            ((ClassBuilder) iter.next()).makeMethod(modifier, name, parameters, returnType, exceptions, lockLevel);
        }
    }

    public void endClass() throws BuilderException {
        for (Iterator iter = builders.iterator(); iter.hasNext();) {
            ((ClassBuilder) iter.next()).endClass();
        }
    }

    public CompositeBuilder() {
        this.builders = new HashSet();
    }

    /**
     * Adds a builder to the composition
     * @param builder The builder to add
     */
    public void addBuilder(ClassBuilder builder) {
        builders.add(builder);
    }

    /**
     * Removes a builder from the composition
     * @param builder
     */
    public void removeBuilder(ClassBuilder builder) {
        builders.remove(builder);
    }
}