ParameterSlot


1   /*
2   // $Id: //open/mondrian/src/main/mondrian/calc/ParameterSlot.java#1 $
3   // This software is subject to the terms of the Common Public License
4   // Agreement, available at the following URL:
5   // http://www.opensource.org/licenses/cpl.html.
6   // Copyright (C) 2006-2006 Julian Hyde
7   // All Rights Reserved.
8   // You must accept the terms of that agreement to use this software.
9   */
10  package mondrian.calc;
11  
12  import mondrian.olap.Parameter;
13  
14  /**
15   * Implementation of a parameter.
16   *
17   * @author jhyde
18   * @version $Id: //open/mondrian/src/main/mondrian/calc/ParameterSlot.java#1 $
19   * @since Jul 25, 2006
20   */
21  public interface ParameterSlot {
22      /**
23       * Returns the unique index of the slot.
24       */
25      int getIndex();
26  
27      /**
28       * Returns a compiled expression to compute the default value of the
29       * parameter.
30       */
31      Calc getDefaultValueCalc();
32  
33      /**
34       * Returns the parameter.
35       */
36      Parameter getParameter();
37  
38      /**
39       * Sets the value of this parameter.
40       *
41       * <p>NOTE: This method will be removed when we store parameter values
42       * in the {@link mondrian.olap.Result} rather than in the
43       * {@link mondrian.olap.Query}.
44       */
45      void setParameterValue(Object   value);
46  
47      /**
48       * Returns the value of this parameter.
49       *
50       * <p>NOTE: This method will be removed when we store parameter values
51       * in the {@link mondrian.olap.Result} rather than in the
52       * {@link mondrian.olap.Query}.
53       */
54      Object   getParameterValue();
55  
56      void setCachedDefaultValue(Object   value);
57  
58      Object   getCachedDefaultValue();
59  }
60  
61  // End ParameterSlot.java
62
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