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    1   /*
    2    * Copyright 2005 John G. Wilson
    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
    18  package groovy.lang;
    19
    20  import java.lang.reflect.Method;
    21  import java.util.List;
    22
    23  import org.codehaus.groovy.ast.ClassNode;
    24  import org.codehaus.groovy.runtime.InvokerHelper;
    25
    26  /***
    27   * @author John Wilson
    28   *
    29   */
    30
    31  public class DelegatingMetaClass extends MetaClass {
    32      protected final MetaClass delegate;
    33
    34      public DelegatingMetaClass(final MetaClass delegate) {
    35          super(delegate.theClass);
    36
    37          this.delegate = delegate;
    38      }
    39
    40      public DelegatingMetaClass(final Class theClass) {
    41          this(new MetaClassImpl(InvokerHelper.getInstance().getMetaRegistry(), theClass));
    42      }
    43
    44      /* (non-Javadoc)
    45       * @see groovy.lang.MetaClass#addNewInstanceMethod(java.lang.reflect.Method)
    46       */
    47      public void addNewInstanceMethod(Method method) {
    48          delegate.addNewInstanceMethod(method);
    49      }
    50      /* (non-Javadoc)
    51       * @see groovy.lang.MetaClass#addNewStaticMethod(java.lang.reflect.Method)
    52       */
    53      public void addNewStaticMethod(Method method) {
    54          delegate.addNewStaticMethod(method);
    55      }
    56      /* (non-Javadoc)
    57       * @see groovy.lang.MetaClass#initialize()
    58       */
    59      public void initialize() {
    60          delegate.initialize();
    61      }
    62
    63      /* (non-Javadoc)
    64       * @see groovy.lang.MetaClass#getAttribute(java.lang.Object, java.lang.String)
    65       */
    66      public Object getAttribute(Object object, String attribute) {
    67          return delegate.getAttribute(object, attribute);
    68      }
    69      /* (non-Javadoc)
    70       * @see groovy.lang.MetaClass#getClassNode()
    71       */
    72      public ClassNode getClassNode() {
    73           return delegate.getClassNode();
    74      }
    75      /* (non-Javadoc)
    76       * @see groovy.lang.MetaClass#getMetaMethods()
    77       */
    78      public List getMetaMethods() {
    79          return delegate.getMetaMethods();
    80      }
    81      /* (non-Javadoc)
    82       * @see groovy.lang.MetaClass#getMethods()
    83       */
    84      public List getMethods() {
    85          return delegate.getMethods();
    86      }
    87      /* (non-Javadoc)
    88       * @see groovy.lang.MetaClass#getProperties()
    89       */
    90      public List getProperties() {
    91          return delegate.getProperties();
    92      }
    93      /* (non-Javadoc)
    94       * @see groovy.lang.MetaClass#getProperty(java.lang.Object, java.lang.String)
    95       */
    96      public Object getProperty(Object object, String property) {
    97          return delegate.getProperty(object, property);
    98      }
    99      /* (non-Javadoc)
    100      * @see groovy.lang.MetaClass#invokeConstructor(java.lang.Object[])
    101      */
    102     public Object invokeConstructor(Object[] arguments) {
    103         return delegate.invokeConstructor(arguments);
    104     }
    105
    106     /* (non-Javadoc)
    107      * @see groovy.lang.MetaClass#invokeMethod(java.lang.Object, java.lang.String, java.lang.Object)
    108      */
    109     public Object invokeMethod(Object object, String methodName, Object arguments) {
    110         return delegate.invokeMethod(object, methodName, arguments);
    111     }
    112     /* (non-Javadoc)
    113      * @see groovy.lang.MetaClass#invokeMethod(java.lang.Object, java.lang.String, java.lang.Object[])
    114      */
    115     public Object invokeMethod(Object object, String methodName, Object[] arguments) {
    116         return delegate.invokeMethod(object, methodName, arguments);
    117     }
    118     /* (non-Javadoc)
    119      * @see groovy.lang.MetaClass#invokeStaticMethod(java.lang.Object, java.lang.String, java.lang.Object[])
    120      */
    121     public Object invokeStaticMethod(Object object, String methodName, Object[] arguments) {
    122         return delegate.invokeStaticMethod(object, methodName, arguments);
    123     }
    124
    125     /* (non-Javadoc)
    126      * @see groovy.lang.MetaClass#setAttribute(java.lang.Object, java.lang.String, java.lang.Object)
    127      */
    128     public void setAttribute(Object object, String attribute, Object newValue) {
    129         delegate.setAttribute(object, attribute, newValue);
    130     }
    131     /* (non-Javadoc)
    132      * @see groovy.lang.MetaClass#setProperty(java.lang.Object, java.lang.String, java.lang.Object)
    133      */
    134     public void setProperty(Object object, String property, Object newValue) {
    135         delegate.setProperty(object, property, newValue);
    136     }
    137     /* (non-Javadoc)
    138      * @see java.lang.Object#equals(java.lang.Object)
    139      */
    140     public boolean equals(Object obj) {
    141         return delegate.equals(obj);
    142     }
    143     /* (non-Javadoc)
    144      * @see java.lang.Object#hashCode()
    145      */
    146     public int hashCode() {
    147         return delegate.hashCode();
    148     }
    149     /* (non-Javadoc)
    150      * @see java.lang.Object#toString()
    151      */
    152     public String toString() {
    153         return delegate.toString();
    154     }
    155     /***
    156      * @deprecated
    157      */
    158     public MetaMethod pickMethod(String methodName, Class[] arguments) {
    159         return delegate.pickMethod(methodName,arguments);
    160     }
    161     /***
    162      * @deprecated
    163      */
    164     protected MetaMethod retrieveMethod(String methodName, Class[] arguments) {
    165         return delegate.retrieveMethod(methodName,arguments);
    166     }
    167 }