org.mmbase.storage.search.implementation

Class BasicCompositeConstraint

java.lang.Object

org.mmbase.storage.search.implementation.BasicConstraint

org.mmbase.storage.search.implementation.BasicCompositeConstraint

All Implemented Interfaces:

Serializable, CompositeConstraint, Constraint

public class BasicCompositeConstraint
extends BasicConstraint
implements CompositeConstraint, Serializable

Basic implementation.

Since:

MMBase-1.7

Version:

$Id$

Author:

Rob van Maris

See Also:

Serialized Form

Field Summary

Fields inherited from class org.mmbase.storage.search.implementation.BasicConstraint

modifiable

Fields inherited from interface org.mmbase.storage.search.CompositeConstraint

LOGICAL_AND, LOGICAL_OPERATOR_DESCRIPTIONS, LOGICAL_OR

Constructor Summary

Constructors

Constructor and Description
BasicCompositeConstraint(int logicalOperator, Constraint... childs) Constructor.

Method Summary

Modifier and Type	Method and Description
BasicCompositeConstraint	addChild(Constraint child) Adds new child constraint.
boolean	equals(Object obj) Compares this constraint to the specified object.
int	getBasicSupportLevel() Tests if this constraint is supported by the basic queryhandler.
List<Constraint>	getChilds() Gets the child constraints.
int	getLogicalOperator() Gets the logical operator used to combine the child constraints.
String	getLogicalOperatorDescription() Returns a description of the logical operator
int	hashCode()
BasicCompositeConstraint	removeChild(Constraint child)
void	setUnmodifiable()
String	toString() Returns a string representation of this CompositeConstraint.

Methods inherited from class org.mmbase.storage.search.implementation.BasicConstraint

isInverse, setInverse

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.mmbase.storage.search.Constraint

isInverse

Constructor Detail

BasicCompositeConstraint

public BasicCompositeConstraint(int logicalOperator,
                                Constraint... childs)

Constructor.

Parameters:

logicalOperator - The logical operator.

Throws:

IllegalArgumentException - when an invalid argument is supplied.

Method Detail

setUnmodifiable

public void setUnmodifiable()

Specified by:

setUnmodifiable in interface Constraint

Overrides:

setUnmodifiable in class BasicConstraint

addChild

public BasicCompositeConstraint addChild(Constraint child)

Adds new child constraint.

Parameters:

child - The child constraint.

Returns:

This BasicCompositeConstraint instance.

Throws:

IllegalArgumentException - when an invalid argument is supplied.

removeChild

public BasicCompositeConstraint removeChild(Constraint child)

getChilds

public List<Constraint> getChilds()

Description copied from interface: CompositeConstraint

Gets the child constraints.

Specified by:

getChilds in interface CompositeConstraint

getLogicalOperator

public int getLogicalOperator()

Description copied from interface: CompositeConstraint

Gets the logical operator used to combine the child constraints. This must be either LOGICAL_AND or LOGICAL_OR.

Specified by:

getLogicalOperator in interface CompositeConstraint

getLogicalOperatorDescription

public String getLogicalOperatorDescription()

Returns a description of the logical operator

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

Overrides:

getBasicSupportLevel in class BasicConstraint

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 CompositeConstraint

Specified by:

equals in interface Constraint

Overrides:

equals in class BasicConstraint

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 CompositeConstraint

Specified by:

hashCode in interface Constraint

Overrides:

hashCode in class BasicConstraint

toString

public String toString()

Description copied from interface: CompositeConstraint

Returns a string representation of this CompositeConstraint. The string representation has the form "CompositeConstraint(inverse:<:inverse>, operator:<operator>, childs:<childs>)" where

• <inverse>is the value returned by isInverse()
• <operator> is the value returned by getLogicalOperator()
• <childs> is the value returned by getChilds()

Specified by:

toString in interface CompositeConstraint

Overrides:

toString in class Object

Returns:

A string representation of this CompositeConstraint.