org.vishia.util

Class CallbackTemplate<DerivedNode extends TreeNodeBase<DerivedNode,?,?>>

java.lang.Object

org.vishia.util.CallbackTemplate<DerivedNode>

All Implemented Interfaces:

TreeNodeCallback<DerivedNode>

class CallbackTemplate<DerivedNode extends TreeNodeBase<DerivedNode,?,?>>
extends java.lang.Object
implements TreeNodeCallback<DerivedNode>

Nested Class Summary

Nested classes/interfaces inherited from interface org.vishia.util.TreeNodeCallback

TreeNodeCallback.Result

Constructor Summary

Constructors

Constructor and Description
CallbackTemplate()

Method Summary

Modifier and Type	Method and Description
void	finished() Invoked after finishing a .
TreeNodeCallback.Result	finishedChildren(DerivedNode node) Invoked on end of walking through children of its parent.
TreeNodeCallback.Result	offerLeaf(DerivedNode node) Invoked for any node which has no children.
TreeNodeCallback.Result	offerParent(DerivedNode node) Invoked for any parent which has children.
boolean	shouldAborted() Checks whether the tree walking should be terminated respectively aborted.
void	start() Invoked before start of Files.walkFileTree(java.nio.file.Path, java.util.Set, int, java.nio.file.FileVisitor).

Methods inherited from class java.lang.Object

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

Constructor Detail

CallbackTemplate

CallbackTemplate()

Method Detail

start

public void start()

Description copied from interface: TreeNodeCallback

Invoked before start of Files.walkFileTree(java.nio.file.Path, java.util.Set, int, java.nio.file.FileVisitor). or an adequate communication.

Specified by:

start in interface TreeNodeCallback<DerivedNode extends TreeNodeBase<DerivedNode,?,?>>

finished

public void finished()

Description copied from interface: TreeNodeCallback

Invoked after finishing a .

Specified by:

finished in interface TreeNodeCallback<DerivedNode extends TreeNodeBase<DerivedNode,?,?>>

offerParent

public TreeNodeCallback.Result offerParent(DerivedNode node)

Description copied from interface: TreeNodeCallback

Invoked for any parent which has children.

Specified by:

offerParent in interface TreeNodeCallback<DerivedNode extends TreeNodeBase<DerivedNode,?,?>>

Parameters:

node - a node which has children.

Returns:

information to abort

finishedChildren

public TreeNodeCallback.Result finishedChildren(DerivedNode node)

Description copied from interface: TreeNodeCallback

Invoked on end of walking through children of its parent.

Specified by:

finishedChildren in interface TreeNodeCallback<DerivedNode extends TreeNodeBase<DerivedNode,?,?>>

Parameters:

node - a node which has children.

Returns:

information to abort

offerLeaf

public TreeNodeCallback.Result offerLeaf(DerivedNode node)

Description copied from interface: TreeNodeCallback

Invoked for any node which has no children.

Specified by:

offerLeaf in interface TreeNodeCallback<DerivedNode extends TreeNodeBase<DerivedNode,?,?>>

Parameters:

node - a node which has children.

Returns:

information to abort

shouldAborted

public boolean shouldAborted()

Description copied from interface: TreeNodeCallback

Checks whether the tree walking should be terminated respectively aborted. This routine is called in any walk tree routine. The aborted state should be set from outside in the implementation classes.

Specified by:

shouldAborted in interface TreeNodeCallback<DerivedNode extends TreeNodeBase<DerivedNode,?,?>>

Returns:

true if should terminated.