/*
 * Copyright 2004,2005 The Apache Software Foundation.
 *
 * 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 javax.xml.soap;

import org.w3c.dom.Document;

import java.util.Locale;

/**
 * An object that represents the contents of the SOAP body
 * element in a SOAP message. A SOAP body element consists of XML data
 * that affects the way the application-specific content is processed.
 * <P>
 * A <code>SOAPBody</code> object contains <code>SOAPBodyElement</code>
 * objects, which have the content for the SOAP body.
 * A <code>SOAPFault</code> object, which carries status and/or
 * error information, is an example of a <code>SOAPBodyElement</code> object.
 *
 * @see SOAPFault SOAPFault
 */
public interface SOAPBody extends SOAPElement {

    /**
     * Creates a new <code>SOAPFault</code> object and adds it to
     * this <code>SOAPBody</code> object.
     *
     * @return the new <code>SOAPFault</code> object
     * @throws SOAPException if there is a SOAP error
     */
    public abstract SOAPFault addFault() throws SOAPException;

    /**
     * Indicates whether a <code>SOAPFault</code> object exists in
     * this <code>SOAPBody</code> object.
     *
     * @return <code>true</code> if a <code>SOAPFault</code> object exists in
     *         this <code>SOAPBody</code> object; <code>false</code>
     *         otherwise
     */
    public abstract boolean hasFault();

    /**
     * Returns the <code>SOAPFault</code> object in this <code>SOAPBody</code>
     * object.
     *
     * @return the <code>SOAPFault</code> object in this <code>SOAPBody</code>
     *         object
     */
    public abstract SOAPFault getFault();

    /**
     * Creates a new <code>SOAPBodyElement</code> object with the
     * specified name and adds it to this <code>SOAPBody</code> object.
     *
     * @param name a <code>Name</code> object with the name for the new
     *             <code>SOAPBodyElement</code> object
     * @return the new <code>SOAPBodyElement</code> object
     * @throws SOAPException if a SOAP error occurs
     */
    public abstract SOAPBodyElement addBodyElement(Name name)
            throws SOAPException;

    /**
     * Creates a new <code>SOAPFault</code> object and adds it to this
     * <code>SOAPBody</code> object. The new <code>SOAPFault</code> will have a
     * <code>faultcode</code> element that is set to the <code>faultCode</code>
     * parameter and a <code>faultstring</code> set to <code>faultstring</code>
     * and localized to <code>locale</code>.
     *
     * @param faultCode   a <code>Name</code> object giving the fault code to be
     *                    set; must be one of the fault codes defined in the SOAP 1.1
     *                    specification and of type QName
     * @param faultString a <code>String</code> giving an explanation of the
     *                    fault
     * @param locale      a <code>Locale</code> object indicating the native language
     *                    of the <ocde>faultString</code>
     * @return the new <code>SOAPFault</code> object
     * @throws SOAPException if there is a SOAP error
     */
    public abstract SOAPFault addFault(Name faultCode,
                                       String faultString,
                                       Locale locale) throws SOAPException;

    /**
     * Creates a new <code>SOAPFault</code> object and adds it to this
     * <code>SOAPBody</code> object. The new <code>SOAPFault</code> will have a
     * <code>faultcode</code> element that is set to the <code>faultCode</code>
     * parameter and a <code>faultstring</code> set to <code>faultstring</code>.
     *
     * @param faultCode   a <code>Name</code> object giving the fault code to be
     *                    set; must be one of the fault codes defined in the SOAP 1.1
     *                    specification and of type QName
     * @param faultString a <code>String</code> giving an explanation of the
     *                    fault
     * @return the new <code>SOAPFault</code> object
     * @throws SOAPException if there is a SOAP error
     */
    public abstract SOAPFault addFault(Name faultCode, String faultString) throws SOAPException;

    /**
     * Adds the root node of the DOM <code>Document</code> to this
     * <code>SOAPBody</code> object.
     * <p/>
     * Calling this method invalidates the <code>document</code> parameter. The
     * client application should discard all references to this
     * <code>Document</code> and its contents upon calling
     * <code>addDocument</code>. The behavior of an application that continues
     * to use such references is undefined.
     *
     * @param document the <code>Document</code> object whose root node will be
     *                 added to this <code>SOAPBody</code>
     * @return the <code>SOAPBodyElement</code> that represents the root node
     *         that was added
     * @throws SOAPException if the <code>Document</code> cannot be added
     */
    public abstract SOAPBodyElement addDocument(Document document) throws SOAPException;
}