TemplateContext


1   package org.apache.turbine;
2   
3   /*
4    * The Apache Software License, Version 1.1
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6    * Copyright (c) 2001 The Apache Software Foundation.  All rights
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10   * modification, are permitted provided that the following conditions
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14   *    notice, this list of conditions and the following disclaimer.
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23   *       "This product includes software developed by the
24   *        Apache Software Foundation (http://www.apache.org/)."
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56  
57  import java.util.Set  ;
58  
59  /**
60   * A completely minimal interface for the time being
61   * to allow the decoupling of the template services
62   * from client turbine code.
63   */
64  public interface TemplateContext
65  {
66      /**
67       * Adds a name/value pair to the context.
68       *
69       * @param key   The name to key the provided value with.
70       * @param value The corresponding value.
71       */
72      public Object   put(String   key, Object   value);
73  
74      /**
75       * Gets the value corresponding to the provided key from the context.
76       *
77       * @param key The name of the desired value.
78       * @return    The value corresponding to the provided key.
79       */
80      public Object   get(String   key);
81  
82      /**
83       * Removes the value associated with the specified key from the context.
84       *
85       * @param key The name of the value to remove.
86       * @return    The value that the key was mapped to, or <code>null</code>
87       *            if unmapped.
88       */
89      public Object   remove(Object   key);
90  
91      /**
92       * Returns whether the specified key exists in this context.
93       */
94      public boolean containsKey(Object   key);
95      
96      /**
97       * Retrieves the set of keys of objects stored in this context.
98       *
99       * @return The list of keys.
100      */
101     public Set   keySet();
102 }
103
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