[gatein-commits] gatein SVN: r5304 - portal/branches/navcontroller/component/web/controller/src/main/java/org/exoplatform/web/controller/regexp.

[do-not-reply at jboss.org]

Author: julien_viet
Date: 2010-11-26 16:24:55 -0500 (Fri, 26 Nov 2010)
New Revision: 5304

Modified:
   portal/branches/navcontroller/component/web/controller/src/main/java/org/exoplatform/web/controller/regexp/RENode.java
Log:
preliminary visitor support


Modified: portal/branches/navcontroller/component/web/controller/src/main/java/org/exoplatform/web/controller/regexp/RENode.java
===================================================================
--- portal/branches/navcontroller/component/web/controller/src/main/java/org/exoplatform/web/controller/regexp/RENode.java	2010-11-26 21:11:05 UTC (rev 5303)
+++ portal/branches/navcontroller/component/web/controller/src/main/java/org/exoplatform/web/controller/regexp/RENode.java	2010-11-26 21:24:55 UTC (rev 5304)
@@ -28,6 +28,32 @@
 
    public abstract String toString();
 
+   public abstract void accept(Visitor visitor);
+
+   /**
+    * A visitor.
+    */
+   public static abstract class Visitor
+   {
+      public void enter(Disjunction disjunction) {}
+      public void leave(Disjunction disjunction) {}
+      public void enter(Alternative alternative) {}
+      public void leave(Alternative alternative) {}
+      public void enter(Group group) {}
+      public void leave(Group group) {}
+      public void visit(Assertion assertion) {}
+      public void visit(Dot dot) {}
+      public void visit(Character character) {}
+      public void enter(CharacterClass.Not not) {}
+      public void leave(CharacterClass.Not not) {}
+      public void enter(CharacterClass.Or or) {}
+      public void leave(CharacterClass.Or or) {}
+      public void enter(CharacterClass.And and) {}
+      public void leave(CharacterClass.And and) {}
+      public void visit(CharacterClass.Simple simple) {}
+      public void visit(CharacterClass.Range range) {}
+   }
+
    public static class Disjunction extends RENode
    {
 
@@ -66,6 +92,18 @@
             return alternative.toString();
          }
       }
+
+      @Override
+      public void accept(Visitor visitor)
+      {
+         visitor.enter(this);
+         alternative.accept(visitor);
+         if (next != null)
+         {
+            next.accept(visitor);
+         }
+         visitor.leave(this);
+      }
    }
 
    public static class Alternative extends RENode
@@ -104,6 +142,18 @@
             return exp.toString();
          }
       }
+
+      @Override
+      public void accept(Visitor visitor)
+      {
+         visitor.enter(this);
+         exp.accept(visitor);
+         if (next != null)
+         {
+            next.accept(visitor);
+         }
+         visitor.leave(this);
+      }
    }
 
    public static abstract class Exp extends RENode
@@ -158,6 +208,12 @@
       private Assertion()
       {
       }
+
+      @Override
+      public void accept(Visitor visitor)
+      {
+         visitor.visit(this);
+      }
    }
 
    public static abstract class Atom extends Exp
@@ -179,6 +235,12 @@
       {
          sb.append("<./>");
       }
+
+      @Override
+      public void accept(Visitor visitor)
+      {
+         visitor.visit(this);
+      }
    }
 
    public static final class Group extends Atom
@@ -201,6 +263,14 @@
       {
          sb.append("<(>").append(disjunction).append("</)>");
       }
+
+      @Override
+      public void accept(Visitor visitor)
+      {
+         visitor.enter(this);
+         disjunction.accept(visitor);
+         visitor.leave(this);
+      }
    }
 
    public static final class Character extends Atom
@@ -219,6 +289,12 @@
       {
          sb.append("<c>").append(value).append("</c>");
       }
+
+      @Override
+      public void accept(Visitor visitor)
+      {
+         visitor.visit(this);
+      }
    }
 
    public static abstract class CharacterClass extends Atom
@@ -248,6 +324,14 @@
             negated.toString(sb);
             sb.append("]");
          }
+
+         @Override
+         public void accept(Visitor visitor)
+         {
+            visitor.enter(this);
+            negated.accept(visitor);
+            visitor.leave(this);
+         }
       }
 
       public static class Or extends CharacterClass
@@ -281,6 +365,15 @@
             right.toString(sb);
             sb.append("]");
          }
+
+         @Override
+         public void accept(Visitor visitor)
+         {
+            visitor.enter(this);
+            left.accept(visitor);
+            right.accept(visitor);
+            visitor.leave(this);
+         }
       }
 
       public static class And extends CharacterClass
@@ -315,6 +408,15 @@
             right.toString(sb);
             sb.append("]");
          }
+
+         @Override
+         public void accept(Visitor visitor)
+         {
+            visitor.enter(this);
+            left.accept(visitor);
+            right.accept(visitor);
+            visitor.leave(this);
+         }
       }
 
       public static class Simple extends CharacterClass
@@ -335,6 +437,12 @@
             sb.append(value);
             sb.append("]");
          }
+
+         @Override
+         public void accept(Visitor visitor)
+         {
+            visitor.visit(this);
+         }
       }
 
       public static class Range extends CharacterClass
@@ -361,6 +469,12 @@
             sb.append(to);
             sb.append("]");
          }
+
+         @Override
+         public void accept(Visitor visitor)
+         {
+            visitor.visit(this);
+         }
       }
    }
 }