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    1   /*
    2    * Copyright 2003 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   package net.sf.cglib.core;
   17   
   18   /**
   19    * The <code>GeneratorStrategy</code. is responsible for taking a
   20    * {@link ClassGenerator} and producing a byte array containing the
   21    * data for the generated <code>Class</code>.  By providing your
   22    * own strategy you may examine or modify the generated class before
   23    * it is loaded. Typically this will be accomplished by subclassing
   24    * {@link DefaultGeneratorStrategy} and overriding the appropriate
   25    * protected method.
   26    * @see AbstractClassGenerator#setStrategy
   27    */
   28   public interface GeneratorStrategy {
   29       /**
   30        * Generate the class.
   31        * @param cg a class generator on which you can call {@link ClassGenerator#generateClass}
   32        * @return a byte array containing the bits of a valid Class
   33        */
   34       byte[] generate(ClassGenerator cg) throws Exception;
   35   
   36       /**
   37        * The <code>GeneratorStrategy</code> in use does not currently, but may
   38        * in the future, affect the caching of classes generated by {@link
   39        * AbstractClassGenerator}, so this is a reminder that you should
   40        * correctly implement <code>equals</code> and <code>hashCode</code>
   41        * to avoid generating too many classes.
   42        */
   43       boolean equals(Object o);
   44   }

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