org.axiondb.constraints
Class BaseSelectableBasedConstraint

java.lang.Object
  org.axiondb.constraints.BaseConstraint
      org.axiondb.constraints.BaseSelectableBasedConstraint

All Implemented Interfaces:

Constraint, SelectableBasedConstraint, Serializable

Direct Known Subclasses:

ForeignKeyConstraint, NotNullConstraint, NullConstraint, UniqueConstraint

public abstract class BaseSelectableBasedConstraint

extends BaseConstraint

implements SelectableBasedConstraint

Abstract base SelectableBasedConstraintimplementation.

Version:

$Revision: 1.11 $ $Date: 2004/08/07 10:14:41 $

See Also:

Serialized Form

Constructor Summary

BaseSelectableBasedConstraint(String name, String type)
Creates a Constraintwith the given name and type .

Method Summary

void	addSelectable(Selectable sel)
abstract boolean	evaluate(RowEvent event) Evaluate the given event under me.
Selectable	getSelectable(int i)
int	getSelectableCount()
List	getSelectableList()
Iterator	getSelectables()
void	resolve(Database db, TableIdentifier table) This base implementation resolvesall of the Selectables in my list.

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

BaseSelectableBasedConstraint

public BaseSelectableBasedConstraint(String name,
                                     String type)

Creates a Constraintwith the given name and type .

Parameters:

name - the name of this constraint (see BaseConstraint.setName(java.lang.String)) which may be null

type - the type of this constraint (see BaseConstraint.getType()), which should not be null

Method Detail

evaluate

public abstract 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

addSelectable

public void addSelectable(Selectable sel)

Specified by:

addSelectable in interface SelectableBasedConstraint

getSelectableCount

public int getSelectableCount()

Specified by:

getSelectableCount in interface SelectableBasedConstraint

getSelectable

public Selectable getSelectable(int i)

Specified by:

getSelectable in interface SelectableBasedConstraint

getSelectableList

public List getSelectableList()

getSelectables

public Iterator getSelectables()

resolve

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

This base implementation resolvesall of the Selectables in my list.

Specified by:

resolve in interface Constraint

Overrides:

resolve in class BaseConstraint

Throws:

AxionException