ExceptionHandler xref

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    1   /*
    2    * Copyright  2000-2004 The Apache Software Foundation
    3    *
    4    *  Licensed under the Apache License, Version 2.0 (the "License");
    5    *  you may not use this file except in compliance with the License.
    6    *  You may obtain a copy of the License at
    7    *
    8    *      http://www.apache.org/licenses/LICENSE-2.0
    9    *
    10   *  Unless required by applicable law or agreed to in writing, software
    11   *  distributed under the License is distributed on an "AS IS" BASIS,
    12   *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13   *  See the License for the specific language governing permissions and
    14   *  limitations under the License.
    15   *
    16   */
    17  package org.apache.bcel.verifier.structurals;
    18
    19
    20  import org.apache.bcel.generic.InstructionHandle;
    21  import org.apache.bcel.generic.ObjectType;
    22
    23  /***
    24   * This class represents an exception handler; that is, an ObjectType
    25   * representing a subclass of java.lang.Throwable and the instruction
    26   * the handler starts off (represented by an InstructionContext).
    27   *
    28   * @version $Id: ExceptionHandler.java 371539 2006-01-23 14:08:00Z tcurdt $
    29   * @author Enver Haase
    30   */
    31  public class ExceptionHandler{
    32  	/*** The type of the exception to catch. NULL means ANY. */
    33  	private ObjectType catchtype;
    34
    35  	/*** The InstructionHandle where the handling begins. */
    36  	private InstructionHandle handlerpc;
    37
    38  	/*** Leave instance creation to JustIce. */
    39  	ExceptionHandler(ObjectType catch_type, InstructionHandle handler_pc){
    40  		catchtype = catch_type;
    41  		handlerpc = handler_pc;
    42  	}
    43
    44  	/***
    45  	 * Returns the type of the exception that's handled. <B>'null' means 'ANY'.</B>
    46  	 */
    47  	public ObjectType getExceptionType(){
    48  		return catchtype;
    49  	}
    50
    51  	/***
    52  	 * Returns the InstructionHandle where the handler starts off.
    53  	 */
    54  	public InstructionHandle getHandlerStart(){
    55  		return handlerpc;
    56  	}
    57  }