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    1   /*
    2    * $Id: TemporaryMethodKey.java,v 1.3 2004/07/10 03:31:42 bran Exp $
    3    *
    4    * Copyright 2003 (C) James Strachan and Bob Mcwhirter. All Rights Reserved.
    5    *
    6    * Redistribution and use of this software and associated documentation
    7    * ("Software"), with or without modification, are permitted provided that the
    8    * following conditions are met:
    9    *  1. Redistributions of source code must retain copyright statements and
    10   * notices. Redistributions must also contain a copy of this document.
    11   *  2. Redistributions in binary form must reproduce the above copyright
    12   * notice, this list of conditions and the following disclaimer in the
    13   * documentation and/or other materials provided with the distribution.
    14   *  3. The name "groovy" must not be used to endorse or promote products
    15   * derived from this Software without prior written permission of The Codehaus.
    16   * For written permission, please contact info@codehaus.org.
    17   *  4. Products derived from this Software may not be called "groovy" nor may
    18   * "groovy" appear in their names without prior written permission of The
    19   * Codehaus. "groovy" is a registered trademark of The Codehaus.
    20   *  5. Due credit should be given to The Codehaus - http://groovy.codehaus.org/
    21   *
    22   * THIS SOFTWARE IS PROVIDED BY THE CODEHAUS AND CONTRIBUTORS ``AS IS'' AND ANY
    23   * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
    24   * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
    25   * DISCLAIMED. IN NO EVENT SHALL THE CODEHAUS OR ITS CONTRIBUTORS BE LIABLE FOR
    26   * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
    27   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
    28   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
    29   * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
    30   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
    31   * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
    32   * DAMAGE.
    33   *
    34   */
    35  package org.codehaus.groovy.runtime;
    36
    37  import groovy.lang.MetaClass;
    38
    39  /***
    40   * A temporary implementation of MethodKey used to perform a fast lookup
    41   * for a method using a set of arguments to a method
    42   *
    43   * @author <a href="mailto:james@coredevelopers.net">James Strachan</a>
    44   * @version $Revision: 1.3 $
    45   */
    46  public class TemporaryMethodKey extends MethodKey {
    47
    48      private Object[] parameterValues;
    49
    50      public TemporaryMethodKey(String name, Object[] parameterValues) {
    51          super(name);
    52          if (parameterValues == null) {
    53              parameterValues = MetaClass.EMPTY_ARRAY;
    54          }
    55          this.parameterValues = parameterValues;
    56      }
    57
    58      public int getParameterCount() {
    59          return parameterValues.length;
    60      }
    61
    62      public Class getParameterType(int index) {
    63          Object value = parameterValues[index];
    64
    65          if (value != null ) {
    66              Class type = (Class)((value.getClass() == java.lang.Class.class) ?
    67                      value :
    68                      value.getClass());
    69              return type;
    70          }
    71
    72          return Object.class;
    73      }
    74  }