org.axiondb.constraints

Class CheckConstraint

java.lang.Object

org.axiondb.constraints.BaseConstraint

org.axiondb.constraints.CheckConstraint

All Implemented Interfaces:

java.io.Serializable, Constraint

public class CheckConstraint
extends BaseConstraint

A CHECK constraint, which is violated whenever the given conditionis violated.

Version:

$Revision: 1.17 $ $Date: 2005/12/20 18:32:46 $

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
CheckConstraint(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)
Selectable	getCondition()
void	resolve(Database db, TableIdentifier table) This base implementation is a no-op.
void	setCondition(Selectable where)

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

Constructor Detail

CheckConstraint

public CheckConstraint(java.lang.String name)

Method Detail

setCondition

public void setCondition(Selectable where)

getCondition

public Selectable getCondition()

resolve

public void resolve(Database db,
                    TableIdentifier table)
             throws AxionException

Description copied from class: BaseConstraint

This base implementation is a no-op.

Specified by:

resolve in interface Constraint

Overrides:

resolve in class BaseConstraint

Throws:

AxionException

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 BaseConstraint

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.

Throws:

AxionException

evaluate

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

Throws:

AxionException