org.drools.core.rule
Class MutableTypeConstraint

java.lang.Object
  org.drools.core.rule.MutableTypeConstraint

All Implemented Interfaces:

Externalizable, Serializable, Cloneable, AlphaNodeFieldConstraint, BetaNodeFieldConstraint, Constraint, RuleComponent

Direct Known Subclasses:

AbstractCompositeConstraint, EvaluatorConstraint, MvelConstraint, PredicateConstraint

public abstract class MutableTypeConstraint
extends Object
implements AlphaNodeFieldConstraint, BetaNodeFieldConstraint, Externalizable

A base class for constraints

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface org.drools.core.spi.Constraint

Constraint.ConstraintType

Constructor Summary

MutableTypeConstraint()

Method Summary

abstract MutableTypeConstraint	clone() Clones the constraint
MutableTypeConstraint	cloneIfInUse() Clone this constraints only if it is already used by a different node, otherwise returns this
Constraint.ConstraintType	getType() Returns the type of the constraint, either ALPHA, BETA or UNKNOWN
void	readExternal(ObjectInput in)
boolean	setInUse()
void	setType(Constraint.ConstraintType type)
void	writeExternal(ObjectOutput out)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.drools.core.spi.AlphaNodeFieldConstraint

createContextEntry, isAllowed

Methods inherited from interface org.drools.core.spi.BetaNodeFieldConstraint

createContextEntry, isAllowedCachedLeft, isAllowedCachedRight

Methods inherited from interface org.drools.core.spi.Constraint

getRequiredDeclarations, isTemporal, replaceDeclaration

Constructor Detail

MutableTypeConstraint

public MutableTypeConstraint()

Method Detail

setType

public void setType(Constraint.ConstraintType type)

getType

public Constraint.ConstraintType getType()

Description copied from interface: Constraint

Returns the type of the constraint, either ALPHA, BETA or UNKNOWN

Specified by:

getType in interface Constraint

Returns:

readExternal

public void readExternal(ObjectInput in)
                  throws IOException,
                         ClassNotFoundException

Specified by:

readExternal in interface Externalizable

Throws:

IOException

ClassNotFoundException

writeExternal

public void writeExternal(ObjectOutput out)
                   throws IOException

Specified by:

writeExternal in interface Externalizable

Throws:

IOException

clone

public abstract MutableTypeConstraint clone()

Description copied from interface: Constraint

Clones the constraint

Specified by:

clone in interface Constraint

Overrides:

clone in class Object

Returns:

cloneIfInUse

public MutableTypeConstraint cloneIfInUse()

Description copied from interface: AlphaNodeFieldConstraint

Clone this constraints only if it is already used by a different node, otherwise returns this

Specified by:

cloneIfInUse in interface AlphaNodeFieldConstraint

Specified by:

cloneIfInUse in interface BetaNodeFieldConstraint

setInUse

public boolean setInUse()