org.apache.polygene.api.util

Interface HierarchicalVisitor<NODE,LEAF,ThrowableType extends Throwable>

All Superinterfaces:

Visitor<LEAF,ThrowableType>

All Known Implementing Classes:

HierarchicalVisitorAdapter

public interface HierarchicalVisitor<NODE,LEAF,ThrowableType extends Throwable>
extends Visitor<LEAF,ThrowableType>

Visitor to visit hierarchies.

Method Summary

Modifier and Type	Method and Description
boolean	visit(LEAF visited) Visit an instance of T
boolean	visitEnter(NODE visited) Enter an instance of T
boolean	visitLeave(NODE visited) Leave an instance of T

Method Detail

visitEnter

boolean visitEnter(NODE visited)
            throws ThrowableType extends Throwable

Enter an instance of T

Parameters:

visited - the visited instance which is now entered

Returns:

true if the visitor pattern should continue, false if it should be aborted for this level

Throws:

ThrowableType - if an exception occurred during processing. Any client call that initiated the visiting should get the exception in order to handle it properly.

ThrowableType extends Throwable

visitLeave

boolean visitLeave(NODE visited)
            throws ThrowableType extends Throwable

Leave an instance of T

Parameters:

visited - the visited instance which is now left

Returns:

true if the visitor pattern should continue, false if it should be aborted for the level of this node

Throws:

ThrowableType - if an exception occurred during processing. Any client call that initiated the visiting should get the exception in order to handle it properly.

ThrowableType extends Throwable

visit

boolean visit(LEAF visited)
       throws ThrowableType extends Throwable

Description copied from interface: Visitor

Visit an instance of T

Specified by:

visit in interface Visitor<LEAF,ThrowableType extends Throwable>

Parameters:

visited - the visited instance

Returns:

true if the visitor pattern should continue, false if it should be aborted

Throws:

ThrowableType - if an exception occurred during processing. Any client call that initiated the visiting should get the exception in order to handle it properly.

ThrowableType extends Throwable