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The Axiom API
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/*
 * 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.axiom.soap;

import org.apache.axiom.om.OMElement;
import org.apache.axiom.om.OMException;
import org.apache.axiom.om.OMNamespace;

/** Interface SOAPEnvelope */
public interface SOAPEnvelope extends OMElement {
    /**
     * Returns the SOAPHeader object for this  SOAPEnvelope object. 
     * This SOAPHeader will just be a container for all the headers in the OMMessage
     * 
     *
     * @return the SOAPHeader object or  null if there is none
     * @throws org.apache.axiom.om.OMException
     *          if there is a problem obtaining the SOAPHeader object
     */
    SOAPHeader getHeader() throws OMException;

    /**
     * Returns the SOAPBody object associated with this SOAPEnvelope
     * object.  This SOAPBody will just be a container for all the BodyElements in the
     * OMMessage 
     *
     * @return the SOAPBody object for this  SOAPEnvelope object or
     *         null if there is none
     * @throws OMException if there is a problem obtaining the SOAPBody object
     */
    SOAPBody getBody() throws OMException;

    SOAPVersion getVersion();
    
    /**
     * Returns true if there is a SOAPFault in the body.
     * The implementation may choose to get this information by building the OM
     * tree or use parser provided information.
     * @return true if SOAPFault in the body
     */
    boolean hasFault();
    
    /**
     * Retrieves the OMNamespace of the first element in the body.
     * The implementation might build the OMElement or it may
     * obtain this information from the builder/parser without building
     * the OMElement.  Use this method in the situations where you need
     * to know the OMNamespace, but don't necessarily need the OMElement.
     * @return OMNamespace of first element in the body or null
     */
    public OMNamespace getSOAPBodyFirstElementNS();
    
    /**
     * Retrieves the local name of the first element in the body.
     * The implementation might build the OMElement or it may
     * obtain this information from the builder/parser without building
     * the OMElement.  Use this method in the situations where you need
     * to know the name, but don't necessarily need the OMElement.
     * @return local name of first element in the body or null
     */
    public String getSOAPBodyFirstElementLocalName();
}