| java.lang.Object
 org.apache.derby.impl.sql.compile.HasNodeVisitor
| HasNodeVisitor | | public class HasNodeVisitor implements Visitor(Code) | | Find out if we have a particular node anywhere in the
tree. Stop traversal as soon as we find one.
Can find any type of node -- the class or class name
of the target node is passed in as a constructor
parameter.
author:
jamie |
| HasNodeVisitor | | public HasNodeVisitor(Class nodeClass)(Code) | | Construct a visitor
Parameters:
nodeClass - the class of the node that we are looking for. |
| HasNodeVisitor | | public HasNodeVisitor(Class nodeClass, Class skipOverClass)(Code) | | Construct a visitor
Parameters:
nodeClass - the class of the node that we are looking for.
Parameters:
skipOverClass - do not go below thisnode when searching for nodeClass. |
| hasNode | | public boolean hasNode()(Code) | | Indicate whether we found the node in
question
true/false |
| reset | | public void reset()(Code) | | Reset the status so it can be run again.
|
| skipChildren | | public boolean skipChildren(Visitable node)(Code) | | Don't visit childen under the skipOverClass
node, if it isn't null.
true/false |
| stopTraversal | | public boolean stopTraversal()(Code) | | Stop traversal if we found the target node
true/false |
| visit | | public Visitable visit(Visitable node)(Code) | | If we have found the target node, we are done.
Parameters:
node - the node to process me |
|
|