org.apache.cayenne.util
Class BaseTreeVisitor
java.lang.Object
org.apache.cayenne.util.BaseTreeVisitor
- All Implemented Interfaces:
- HierarchicalTreeVisitor
public class BaseTreeVisitor
- extends Object
- implements HierarchicalTreeVisitor
A common superclass for specialized tree visitors. Can also be used as a noop
pass-through visitor for nodes that need no processing by themselves.
- Author:
- Andrus Adamchik
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
childVisitors
protected Map childVisitors
terminatingOnNoChildVisitor
protected boolean terminatingOnNoChildVisitor
BaseTreeVisitor
public BaseTreeVisitor()
isTerminatingOnNoChildVisitor
public boolean isTerminatingOnNoChildVisitor()
setTerminatingOnNoChildVisitor
public void setTerminatingOnNoChildVisitor(boolean terminatingOnNoChildVisitor)
childVisitor
public HierarchicalTreeVisitor childVisitor(ProjectPath path,
Class childType)
- Description copied from interface:
HierarchicalTreeVisitor
- Returns an instance of the child visitor for a given project path and a type of
child. Returning null would result in skipping the particular child type.
- Specified by:
childVisitor
in interface HierarchicalTreeVisitor
onFinishNode
public void onFinishNode(ProjectPath path)
- Description copied from interface:
HierarchicalTreeVisitor
- Invoked at the end of the annotation tree traversal, which is done in a depth-first
manner.
- Specified by:
onFinishNode
in interface HierarchicalTreeVisitor
onStartNode
public boolean onStartNode(ProjectPath path)
- Description copied from interface:
HierarchicalTreeVisitor
- Invoked in the beginning of the element subtree traversal. Traversal is done in a
depth-first manner, so returning false from this method would suppress child
elements traversal.
- Specified by:
onStartNode
in interface HierarchicalTreeVisitor
addChildVisitor
public void addChildVisitor(Class childClass,
HierarchicalTreeVisitor visitor)
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