org.mmbase.storage.search.implementation

Class BasicConstraint

java.lang.Object

org.mmbase.storage.search.implementation.BasicConstraint

All Implemented Interfaces:

Serializable, Constraint

Direct Known Subclasses:

BasicCompositeConstraint, BasicFieldConstraint, BasicLegacyConstraint

public class BasicConstraint
extends Object
implements Constraint, Serializable

Basic implementation.

Since:

MMBase-1.7

Version:

$Id$

Author:

Rob van Maris

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	modifiable

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	BasicConstraint()

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object obj) Compares this constraint to the specified object.
int	getBasicSupportLevel() Tests if this constraint is supported by the basic queryhandler.
int	hashCode()
boolean	isInverse() Tests if the condition must be inverted.
BasicConstraint	setInverse(boolean inverse) Sets inverse.
void	setUnmodifiable()

Methods inherited from class java.lang.Object

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

Field Detail

modifiable

protected boolean modifiable

Constructor Detail

BasicConstraint

protected BasicConstraint()

Method Detail

setUnmodifiable

public void setUnmodifiable()

Specified by:

setUnmodifiable in interface Constraint

Since:

MMBase-1.9.2

setInverse

public BasicConstraint setInverse(boolean inverse)

Sets inverse.

Parameters:

inverse - The inverse value.

Returns:

This BasicConstraint instance.

isInverse

public boolean isInverse()

Description copied from interface: Constraint

Tests if the condition must be inverted.

This corresponds to the use of NOT in a WHERE-clause in SQL SELECT-syntax.

Specified by:

isInverse in interface Constraint

getBasicSupportLevel

public int getBasicSupportLevel()

Description copied from interface: Constraint

Tests if this constraint is supported by the basic queryhandler.

Specified by:

getBasicSupportLevel in interface Constraint

equals

public boolean equals(Object obj)

Description copied from interface: Constraint

Compares this constraint to the specified object. The result is true if and only if the argument is a non-null Constraint object representing the same constraint(s).

Specified by:

equals in interface Constraint

Overrides:

equals in class Object

Parameters:

obj - The object to compare with.

Returns:

true if the objects are equal, false otherwise.

hashCode

public int hashCode()

Specified by:

hashCode in interface Constraint

Overrides:

hashCode in class Object