/*

 */

/*

 * 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 com.sun.org.apache.xpath.internal;

import com.sun.org.apache.xpath.internal.functions.FuncExtFunction;

/**

 * Interface that XPath objects can call to obtain access to an

 * ExtensionsTable.

 *

 */

public interface ExtensionsProvider

{

  /**

   * Is the extension function available?

   */

  public boolean functionAvailable(String ns, String funcName)

          throws javax.xml.transform.TransformerException;

  /**

   * Is the extension element available?

   */

  public boolean elementAvailable(String ns, String elemName)

          throws javax.xml.transform.TransformerException;

  /**

   * Execute the extension function.

   */

            throws javax.xml.transform.TransformerException;

  /**

   * Execute the extension function.

   */

            throws javax.xml.transform.TransformerException;

}