net.sourceforge.pmd.util.viewer.model
Class ViewerModel

java.lang.Object
  net.sourceforge.pmd.util.viewer.model.ViewerModel

public class ViewerModel
extends Object

Constructor Summary

ViewerModel()

Method Summary

void	addViewerModelListener(ViewerModelListener l)
void	appendToXPathExpression(String pathFragment, Object appender) appends the given fragment to the XPath expression
void	commitSource(String source, LanguageVersion languageVersion) commits source code to the model.
void	evaluateXPathExpression(String xPath, Object evaluator) evaluates the given XPath expression against the current tree
protected void	fireViewerModelEvent(ViewerModelEvent e)
List<Node>	getLastEvaluationResults() retrieves the results of last evaluation
Node	getRootNode()
boolean	hasCompiledTree() determines whether the model has a compiled tree at it's disposal
void	removeViewerModelListener(ViewerModelListener l)
void	selectNode(Node node, Object selector) selects the given node in the AST

Methods inherited from class java.lang.Object

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

Constructor Detail

ViewerModel

public ViewerModel()

Method Detail

getRootNode

public Node getRootNode()

commitSource

public void commitSource(String source,
                         LanguageVersion languageVersion)

commits source code to the model. all existing source will be replaced

hasCompiledTree

public boolean hasCompiledTree()

determines whether the model has a compiled tree at it's disposal

Returns:

true if there is an AST, false otherwise

evaluateXPathExpression

public void evaluateXPathExpression(String xPath,
                                    Object evaluator)
                             throws ParseException,
                                    org.jaxen.JaxenException

evaluates the given XPath expression against the current tree

Parameters:

xPath - XPath expression to be evaluated

evaluator - object which requests the evaluation

Throws:

ParseException

org.jaxen.JaxenException

getLastEvaluationResults

public List<Node> getLastEvaluationResults()

retrieves the results of last evaluation

Returns:

a list containing the nodes selected by the last XPath expression

evaluation

selectNode

public void selectNode(Node node,
                       Object selector)

selects the given node in the AST

Parameters:

node - node to be selected

selector - object which requests the selection

appendToXPathExpression

public void appendToXPathExpression(String pathFragment,
                                    Object appender)

appends the given fragment to the XPath expression

Parameters:

pathFragment - fragment to be added

appender - object that is trying to append the fragment

addViewerModelListener

public void addViewerModelListener(ViewerModelListener l)

removeViewerModelListener

public void removeViewerModelListener(ViewerModelListener l)

fireViewerModelEvent

protected void fireViewerModelEvent(ViewerModelEvent e)