biz.hammurapi.util
Class VisitableBase

java.lang.Object
  biz.hammurapi.util.VisitableBase

All Implemented Interfaces:

Searchable, Visitable

Direct Known Subclasses:

GenericContainer, TreeNode

public abstract class VisitableBase
extends java.lang.Object
implements Visitable, Searchable

Implements Visitable contract. Subclasses shall implement visitChildren() method.

Version:

$Revision: 1.4 $

Author:

Pavel Vlasov

Constructor Summary

VisitableBase()

Method Summary

boolean	accept(Visitor visitor)
protected void	acceptChildren(Visitor visitor) Override this method to navigate visitor through object constituents.
static Searchable	convert2searchable(java.lang.Object object) Wraps object into instance of Searchable
java.lang.Object	find(Acceptor acceptor)
java.util.Collection	findAll(Acceptor acceptor)
static void	object2visitor(java.lang.Object target, Visitor visitor) Properly handles passing visitor to a child - takes into account that child is visitable and visitor may be an instance of PoliteVisitor.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

VisitableBase

public VisitableBase()

Method Detail

accept

public boolean accept(Visitor visitor)

Specified by:

accept in interface Visitable

Returns:

visitor.vistit()

find

public java.lang.Object find(Acceptor acceptor)

Specified by:

find in interface Searchable

Returns:

First object accepted by acceptor or null

findAll

public java.util.Collection findAll(Acceptor acceptor)

Specified by:

findAll in interface Searchable

Returns:

Collection of objects accepted by acceptor

acceptChildren

protected void acceptChildren(Visitor visitor)

Override this method to navigate visitor through object constituents.

Parameters:

visitor -

object2visitor

public static void object2visitor(java.lang.Object target,
                                  Visitor visitor)

Properly handles passing visitor to a child - takes into account that child is visitable and visitor may be an instance of PoliteVisitor.

Parameters:

target - Object to be visited by the visitor.

visitor -

child -

convert2searchable

public static Searchable convert2searchable(java.lang.Object object)

Wraps object into instance of Searchable

Parameters:

visitor -

child -