org.axiondb.constraints

Class NotNullConstraint

java.lang.Object

org.axiondb.constraints.BaseConstraint

org.axiondb.constraints.BaseSelectableBasedConstraint

org.axiondb.constraints.NotNullConstraint

All Implemented Interfaces:

java.io.Serializable, Constraint, SelectableBasedConstraint

public class NotNullConstraint
extends BaseSelectableBasedConstraint

A NOT NULL constraint, which is violated whenever one or more of the specified Selectables is null.

Version:

$Revision: 1.16 $ $Date: 2005/12/20 18:32:46 $

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
NotNullConstraint()
NotNullConstraint(java.lang.String name)

Method Summary

Modifier and Type	Method and Description
boolean	evaluate(RowEvent event) Evaluate the given event under me.
boolean	evaluate(RowEvent event, RowDecorator dec) Evaluate the given event under me.
boolean	evaluate(RowIterator oldRows, RowIterator newRows, Table table)
protected static boolean	noneNull(RowDecorator dec, Row row, java.util.Iterator selectables)
protected static boolean	noneNull(RowIterator newRows, Table table, java.util.Iterator selectables)

Methods inherited from class org.axiondb.constraints.BaseSelectableBasedConstraint

addSelectable, getSelectable, getSelectableCount, getSelectableList, getSelectables, resolve

Methods inherited from class org.axiondb.constraints.BaseConstraint

getName, getType, isDeferrable, isDeferred, setDeferrable, setDeferred, setName, toArray

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.axiondb.Constraint

getName, getType, isDeferrable, isDeferred, setDeferrable, setDeferred, setName

Constructor Detail

NotNullConstraint

public NotNullConstraint()

NotNullConstraint

public NotNullConstraint(java.lang.String name)

Method Detail

evaluate

public boolean evaluate(RowEvent event)
                 throws AxionException

Description copied from interface: Constraint

Evaluate the given event under me. Returns false if the constraint I represent has been violated.

Specified by:

evaluate in interface Constraint

Specified by:

evaluate in class BaseSelectableBasedConstraint

Throws:

AxionException

evaluate

public boolean evaluate(RowEvent event,
                        RowDecorator dec)
                 throws AxionException

Description copied from interface: Constraint

Evaluate the given event under me. Returns false if the constraint I represent has been violated.

Specified by:

evaluate in interface Constraint

Specified by:

evaluate in class BaseSelectableBasedConstraint

Throws:

AxionException

noneNull

protected static boolean noneNull(RowDecorator dec,
                                  Row row,
                                  java.util.Iterator selectables)
                           throws AxionException

Throws:

AxionException

evaluate

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

Specified by:

evaluate in interface Constraint

Specified by:

evaluate in class BaseSelectableBasedConstraint

Throws:

AxionException

noneNull

protected static boolean noneNull(RowIterator newRows,
                                  Table table,
                                  java.util.Iterator selectables)
                           throws AxionException

Throws:

AxionException