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    1   /***************************************************************************************
    2    * Copyright (c) Jonas BonŽr, Alexandre Vasseur. All rights reserved.                 *
    3    * http://aspectwerkz.codehaus.org                                                    *
    4    * ---------------------------------------------------------------------------------- *
    5    * The software in this package is published under the terms of the LGPL license      *
    6    * a copy of which has been included with this distribution in the license.txt file.  *
    7    **************************************************************************************/
    8   package org.codehaus.aspectwerkz.joinpoint;
    9
    10  /***
    11   * Implements the join point concept, e.g. defines a well defined point in the program flow.
    12   * <p/>
    13   * Provides access to runtime type information (RTTI), is therefore significantly <b>slower</b>
    14   * than the usage of the {@link org.codehaus.aspectwerkz.joinpoint.StaticJoinPoint} interface.
    15   *
    16   * @author <a href="mailto:jboner@codehaus.org">Jonas BonŽr </a>
    17   */
    18  public interface JoinPoint extends StaticJoinPoint {
    19
    20      /***
    21       * Returns the callee instance.
    22       *
    23       * @return the callee instance
    24       */
    25      Object getCallee();
    26
    27      /***
    28       * Returns the caller instance.
    29       *
    30       * @return the caller instance
    31       */
    32      Object getCaller();
    33
    34      /***
    35       * Returns the 'this' instance (the one currently executing).
    36       *
    37       * @return 'this'
    38       */
    39      Object getThis();
    40
    41      /***
    42       * Returns the target instance. If the join point is executing in a static context it returns null.
    43       *
    44       * @return the target instance
    45       */
    46      Object getTarget();
    47
    48      /***
    49       * Returns the JoinPoint RTTI
    50       *
    51       * @return the Rtti
    52       */
    53      Rtti getRtti();
    54  }