io.keikai.model.impl.sys.formula

Class DependencyTrackerImpl

java.lang.Object

io.keikai.model.impl.sys.formula.DependencyTrackerImpl

All Implemented Interfaces:

DependencyTracker

Direct Known Subclasses:

DependencyTrackerEx

public class DependencyTrackerImpl
extends Object
implements DependencyTracker

A default dependency tracker.

Author:

Pao

Constructor Summary

Constructors

Constructor and Description
DependencyTrackerImpl()

Method Summary

Modifier and Type	Method and Description
void	addDependency(OperationEvaluationContext ec, Ptg[] ptgs) Construct formula reference dependencies.
void	clearIndirectRefPrecedent(OperationEvaluationContext ec) Clear precedent for a IndirectRef
ValueEval	postProcessValueEval(OperationEvaluationContext ec, ValueEval opResult, boolean eval) Callback when evaluating a formula cell.
void	setIndirectRefPrecedent(OperationEvaluationContext ec, ValueEval preRef) Sets precedent for a IndirectRef

Methods inherited from class java.lang.Object

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

Constructor Detail

DependencyTrackerImpl

public DependencyTrackerImpl()

Method Detail

postProcessValueEval

public ValueEval postProcessValueEval(OperationEvaluationContext ec,
                                      ValueEval opResult,
                                      boolean eval)

Description copied from interface: DependencyTracker

Callback when evaluating a formula cell.

Specified by:

postProcessValueEval in interface DependencyTracker

Parameters:

ec - the evaluation context of the evaluated formula cell.

opResult - the precedent that might change the formula cell.

eval - whether this reference is an evaluated result(e.g. from INDIRECT() function(true), or directly specified in formula(false))

Returns:

the ValueEval after the dependency checking

addDependency

public void addDependency(OperationEvaluationContext ec,
                          Ptg[] ptgs)

Description copied from interface: DependencyTracker

Construct formula reference dependencies.

Specified by:

addDependency in interface DependencyTracker

Parameters:

ec - the evaluation context of the evaluated formula cell.

ptgs - the precedent that might change the formula cell.

clearIndirectRefPrecedent

public void clearIndirectRefPrecedent(OperationEvaluationContext ec)

Description copied from interface: DependencyTracker

Clear precedent for a IndirectRef

Specified by:

clearIndirectRefPrecedent in interface DependencyTracker

setIndirectRefPrecedent

public void setIndirectRefPrecedent(OperationEvaluationContext ec,
                                    ValueEval preRef)

Description copied from interface: DependencyTracker

Sets precedent for a IndirectRef

Specified by:

setIndirectRefPrecedent in interface DependencyTracker