com.sun.electric.tool.io.output

Class Topology.Visitor

java.lang.Object

com.sun.electric.database.hierarchy.HierarchyEnumerator.Visitor

com.sun.electric.tool.io.output.Topology.Visitor

Enclosing class:

Topology

public class Topology.Visitor
extends HierarchyEnumerator.Visitor

Constructor Summary

Constructors

Constructor and Description
Visitor(Topology outGeom)

Method Summary

Modifier and Type	Method and Description
boolean	enterCell(HierarchyEnumerator.CellInfo info) The HierarchyEnumerator is about to begin enumerating the contents of a new Cell instance.
void	exitCell(HierarchyEnumerator.CellInfo info) The HierarchyEnumerator has finished enumerating the contents of the current Cell instance.
HierarchyEnumerator.CellInfo	newCellInfo() A hook to allow the user to add additional information to a CellInfo.
boolean	visitNodeInst(Nodable no, HierarchyEnumerator.CellInfo info) The HierarchyEnumerator is visiting Nodable ni.

Methods inherited from class java.lang.Object

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

Constructor Detail

Visitor

public Visitor(Topology outGeom)

Method Detail

enterCell

public boolean enterCell(HierarchyEnumerator.CellInfo info)

Description copied from class: HierarchyEnumerator.Visitor

The HierarchyEnumerator is about to begin enumerating the contents of a new Cell instance. That instance has just become the new "current" Cell instance.

Specified by:

enterCell in class HierarchyEnumerator.Visitor

Parameters:

info - information about the Cell instance being enumerated

Returns:

a boolean indicating if the HierarchyEnumerator should enumerate the contents of the current Cell. True means enumerate the current cell

exitCell

public void exitCell(HierarchyEnumerator.CellInfo info)

Description copied from class: HierarchyEnumerator.Visitor

The HierarchyEnumerator has finished enumerating the contents of the current Cell instance. It is about to leave it, never to return. The CellInfo associated with the current Cell instance is about to be abandoned.

Specified by:

exitCell in class HierarchyEnumerator.Visitor

Parameters:

info - information about the Cell instance being enumerated

visitNodeInst

public boolean visitNodeInst(Nodable no,
                             HierarchyEnumerator.CellInfo info)

Description copied from class: HierarchyEnumerator.Visitor

The HierarchyEnumerator is visiting Nodable ni.

Specified by:

visitNodeInst in class HierarchyEnumerator.Visitor

Parameters:

no - the Nodable that HierarchyEnumerator is visiting.

Returns:

a boolean indicating whether or not the HierarchyEnumerator should expand the Cell instantiated by ni. True means expand. If ni instantiates a PrimitiveNode then the return value is ignored by the HierarchyEnumerator.

newCellInfo

public HierarchyEnumerator.CellInfo newCellInfo()

Description copied from class: HierarchyEnumerator.Visitor

A hook to allow the user to add additional information to a CellInfo. The newCellInfo method is a "Factory" method. If the user wishes to record additional application specific information for each Cell, the user should extend the CellInfo class and then override newCellInfo to return an instance of that derived class.

Overrides:

newCellInfo in class HierarchyEnumerator.Visitor