ImpliedFromElement


1   // $Id: ImpliedFromElement.java,v 1.1 2005/07/12 20:27:16 steveebersole Exp $
2   package org.hibernate.hql.ast.tree;
3   
4   /**
5    * Represents a FROM element implied by a path expression or a collection reference.
6    *
7    * @author josh Feb 10, 2005 12:31:03 AM
8    */
9   public class ImpliedFromElement extends FromElement {
10      /**
11       * True if this from element was implied from a path in the FROM clause, but not
12       * explicitly declard in the from clause.
13       */
14      private boolean impliedInFromClause = false;
15  
16      /**
17       * True if this implied from element should be included in the projection list.
18       */
19      private boolean inProjectionList = false;
20  
21      public boolean isImplied() {
22          return true;
23      }
24  
25      public void setImpliedInFromClause(boolean flag) {
26          impliedInFromClause = flag;
27      }
28  
29      public boolean isImpliedInFromClause() {
30          return impliedInFromClause;
31      }
32  
33      public void setInProjectionList(boolean inProjectionList) {
34          this.inProjectionList = inProjectionList;
35      }
36  
37      public boolean inProjectionList() {
38          return inProjectionList && isFromOrJoinFragment();
39      }
40  
41      public boolean isIncludeSubclasses() {
42          return false;   // Never include subclasses for implied from elements.
43      }
44  
45      /**
46       * Returns additional display text for the AST node.
47       *
48       * @return String - The additional display text.
49       */
50      public String   getDisplayText() {
51          StringBuffer   buf = new StringBuffer  ();
52          buf.append( "ImpliedFromElement{" );
53          appendDisplayText( buf );
54          buf.append( "}" );
55          return buf.toString();
56      }
57  }
58
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