pfc-prolog-cvs

[<iva...@us...>]

Update of /cvsroot/pfc-prolog/prolix/src/org/asturlinux/frade/prolix/interpreter/interfaces
In directory sc8-pr-cvs1:/tmp/cvs-serv28019a/src/org/asturlinux/frade/prolix/interpreter/interfaces

Modified Files:
	TreeElement.java 
Added Files:
	TreeElementImpl.java TreeElementVisitor.java 
Log Message:
Added visitor pattern

--- NEW FILE: TreeElementImpl.java ---
package org.asturlinux.frade.prolix.interpreter.interfaces;

public abstract class TreeElementImpl 
    implements TreeElement
{
    public void accept(TreeElementVisitor v)
    {
	v.visitTreeElement(this);
    }
}

--- NEW FILE: TreeElementVisitor.java ---
package org.asturlinux.frade.prolix.interpreter.interfaces;

public abstract class TreeElementVisitor
{
    public abstract void visitTreeElement(TreeElement te);
}

Index: TreeElement.java
===================================================================
RCS file: /cvsroot/pfc-prolog/prolix/src/org/asturlinux/frade/prolix/interpreter/interfaces/TreeElement.java,v
retrieving revision 1.4
retrieving revision 1.5
diff -C2 -d -r1.4 -r1.5
*** TreeElement.java	23 Jun 2003 11:16:37 -0000	1.4
--- TreeElement.java	23 Jun 2003 17:15:00 -0000	1.5
***************
*** 34,36 ****
--- 34,41 ----
      public String getQuery();
      public Substitution[] getSubstitutions();
+ 
+     /**
+      * Visitor pattern
+      */
+     public void accept(TreeElementVisitor v);
  }