TupleStartEqualsConstraint (Drools 4.0.0.11754MR2 API) - JBoss RULES 4.0.0.11754MR2 API 英文版文档

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org.drools.common
Class TupleStartEqualsConstraint

java.lang.Object
  org.drools.common.TupleStartEqualsConstraint

All Implemented Interfaces:: Serializable, BetaNodeFieldConstraint, Constraint, RuleComponent

public class TupleStartEqualsConstraint
extends Object
implements BetaNodeFieldConstraint
extends Object
implements BetaNodeFieldConstraint

Checks if one tuple is the start subtuple of other tuple. For instance, if we have two tuples: T1 = [ a, b, c ] T2 = [ a, b, c, d, e] This constraint will evaluate to true as T1 is the starting subtuple of T2. On the other hand, if we have: T1 = [ a, c, b ] T2 = [ a, b, c, d, e ] This constraint will evaluate to false, as T1 is not the starting subtuple of T2. Besides having the same elements, the order is different. This constraint is used when joining subnetworks back into the main network.

Author:: etirelli
See Also:: Serialized Form

Nested Class Summary

static class TupleStartEqualsConstraint.TupleStartEqualsConstraintContextEntry


Method Summary

boolean equals(Object object)


ContextEntry getContextEntry()


static TupleStartEqualsConstraint getInstance()


Declaration[] getRequiredDeclarations()


int hashCode()


boolean isAllowedCachedLeft(ContextEntry context, Object object)


boolean isAllowedCachedRight(ReteTuple tuple, ContextEntry context)


String toString()


Methods inherited from class java.lang.Object

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

Nested Class Summary
`static class`	`TupleStartEqualsConstraint.TupleStartEqualsConstraintContextEntry`

Method Summary
`boolean`	`equals(Object object)`
`ContextEntry`	`getContextEntry()`
`static TupleStartEqualsConstraint`	`getInstance()`
`Declaration[]`	`getRequiredDeclarations()`
`int`	`hashCode()`
`boolean`	`isAllowedCachedLeft(ContextEntry context, Object object)`
`boolean`	`isAllowedCachedRight(ReteTuple tuple, ContextEntry context)`
`String`	`toString()`

Methods inherited from class java.lang.Object
`clone, finalize, getClass, notify, notifyAll, wait, wait, wait`

Method Detail

getInstance

public static TupleStartEqualsConstraint getInstance()

getRequiredDeclarations

public Declaration[] getRequiredDeclarations()

Specified by:: getRequiredDeclarations in interface Constraint

getContextEntry

public ContextEntry getContextEntry()

Specified by:: getContextEntry in interface BetaNodeFieldConstraint

isAllowedCachedLeft

public boolean isAllowedCachedLeft(ContextEntry context,
                                   Object object)

Specified by:: isAllowedCachedLeft in interface BetaNodeFieldConstraint

isAllowedCachedRight

public boolean isAllowedCachedRight(ReteTuple tuple,
                                    ContextEntry context)

Specified by:: isAllowedCachedRight in interface BetaNodeFieldConstraint

toString

public String toString()

Overrides:: toString in class Object

hashCode

public int hashCode()

Overrides:: hashCode in class Object

equals

public boolean equals(Object object)

Overrides:: equals in class Object