wt.epm.structure
Class DependencyGraph.AbstractVisitor

java.lang.Object
  wt.epm.structure.DependencyGraph.AbstractVisitor

All Implemented Interfaces:

DependencyGraph.Visitor

Direct Known Subclasses:

DocCentricDependencyTracer.SaveAsVisitor

Enclosing class:

DependencyGraph

public abstract static class DependencyGraph.AbstractVisitor

extends Object

implements DependencyGraph.Visitor

Field Summary

protected boolean	requiredOnly
protected Map	results

Constructor Summary

protected

DependencyGraph.AbstractVisitor(boolean requiredOnly)

Method Summary

Collection	getResults() Returns the objects that the vistor collected during the traversal.
protected void	keep(Persistable object)
boolean	visit(Persistable node, DependencyGraph.Dependency dependency, Iterated fromNode, boolean previouslyVisited) Decides whether or not to continue the traversal upwards or downwards starting with the given node.

Methods inherited from class java.lang.Object

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

Field Detail

results

protected Map results

requiredOnly

protected boolean requiredOnly

Constructor Detail

DependencyGraph.AbstractVisitor

protected DependencyGraph.AbstractVisitor(boolean requiredOnly)

Method Detail

keep

protected void keep(Persistable object)

getResults

public Collection getResults()

Description copied from interface: DependencyGraph.Visitor

Returns the objects that the vistor collected during the traversal.

Supported API: false

Specified by:

getResults in interface DependencyGraph.Visitor

Returns:

objects that the vistor collected

visit

public boolean visit(Persistable node,
                     DependencyGraph.Dependency dependency,
                     Iterated fromNode,
                     boolean previouslyVisited)

Description copied from interface: DependencyGraph.Visitor

Decides whether or not to continue the traversal upwards or downwards starting with the given node. Notes: a) The "node" may be either an iteration or a master depending upon what the configuration spec selected. b) The immediate dependents of the root objects are the first "nodes" that the Vistor will visit. The Vistor will visit a root object only if it is a dependent of another root object (or a circular dependency exists). c) An EPM document may have circular dependencies. If a Vistor elects to visit previously visited nodes, it must check for circular dependencies otherwise an infinite loop may result.

Supported API: false

Specified by:

visit in interface DependencyGraph.Visitor

Returns:

whether or not to continue the traversal