/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you 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.apache.ws.commons.schema;

/**
 * Requires the elements in the group to appear in the specified sequence
 * within the containing element. Represents the World Wide Web Consortium
 * (W3C) sequence (compositor) element.
 */

public class XmlSchemaSequence extends XmlSchemaGroupBase {

    /**
     * Creates new XmlSchemaSequence
     */
    public XmlSchemaSequence() {
    }

    /**
     * The elements contained within the compositor.
     * Collection of XmlSchemaElement, XmlSchemaGroupRef,
     * XmlSchemaChoice, XmlSchemaSequence, or XmlSchemaAny.
     */
    public XmlSchemaObjectCollection getItems() {
        return items;
    }

    public String toString(String prefix, int tab) {
        String xml = new String();
        for (int i = 0; i < tab; i++)
            xml += "\t";
        if (!prefix.equals("") && prefix.indexOf(":") == -1)
            prefix += ":";

        xml += "<" + prefix + "sequence>\n";
        for (int i = 0; i < items.getCount(); i++) {
            xml += items.getItem(i).toString(prefix, (tab + 1));
        }

        for (int i = 0; i < tab; i++)
            xml += "\t";

        xml += "</" + prefix + "sequence>\n";
        return xml;
    }
}