org.axiondb.constraints

Class NullConstraint

public class NullConstraint extends BaseSelectableBasedConstraint

A NULL constraint, which is never violated but may be created and dropped.

Version: $Revision: 1.10 $ $Date: 2005/12/20 18:32:46 $

Author: Rodney Waldhoff Ahimanikya Satapathy

Constructor Summary
NullConstraint()
NullConstraint(String name)
Method Summary
booleanevaluate(RowEvent event)
Returns true.
booleanevaluate(RowEvent event, RowDecorator dec)
booleanevaluate(RowIterator oldRows, RowIterator newRows, Table table)

Constructor Detail

NullConstraint

public NullConstraint()

NullConstraint

public NullConstraint(String name)

Method Detail

evaluate

public boolean evaluate(RowEvent event)
Returns true.

evaluate

public boolean evaluate(RowEvent event, RowDecorator dec)

evaluate

public boolean evaluate(RowIterator oldRows, RowIterator newRows, Table table)