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

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org.drools.reteoo
Class ReteTuple

java.lang.Object
  org.drools.reteoo.ReteTuple

All Implemented Interfaces:

Serializable, Tuple, Entry

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public class ReteTuple
extends Object
implements Tuple, Entry

See Also:

Serialized Form

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Constructor Summary
ReteTuple(InternalFactHandle handle)
ReteTuple(ReteTuple tuple)
ReteTuple(ReteTuple parentTuple, InternalFactHandle handle)

 

Method Summary
boolean	equals(Object object)
boolean	equals(ReteTuple other)           We use this equals method to avoid the cast
InternalFactHandle	get(Declaration declaration)           Returns the FactHandle for the given Declaration, which in turn specifcy the Pattern that they depend on.
InternalFactHandle	get(int index)           Returns the FactHandle for the given pattern index.
Activation	getActivation()
InternalFactHandle[]	getFactHandles()           Returns the fact handles in reverse order
InternalFactHandle	getLastHandle()
int	getMatches()
Entry	getNext()
long	getRecency()           Returns the tuple recency
ReteTuple	getSubTuple(int elements)           Returns the ReteTuple that contains the "elements" first elements in this tuple.
int	hashCode()
boolean	isFieldIndexed()
void	setActivation(Activation activation)
void	setIsFieldIndexHashCode(boolean fieldIndexed)
void	setMatches(int matches)
void	setNext(Entry next)
int	size()           Returns the size of this tuple in number of elements (patterns)
String	toString()

 

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

 

Constructor Detail

ReteTuple

public ReteTuple(InternalFactHandle handle)

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ReteTuple

public ReteTuple(ReteTuple tuple)

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ReteTuple

public ReteTuple(ReteTuple parentTuple,
                 InternalFactHandle handle)

Method Detail

get

public InternalFactHandle get(int index)

Description copied from interface: Tuple

Returns the FactHandle for the given pattern index. If the pattern is empty It returns null.

Specified by:

get in interface Tuple

Parameters:

index - The index of the pattern from which the FactHandleImpl is to be returned

Returns:

The FactHandle

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setNext

public void setNext(Entry next)

Specified by:

setNext in interface Entry

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getNext

public Entry getNext()

Specified by:

getNext in interface Entry

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isFieldIndexed

public boolean isFieldIndexed()

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setIsFieldIndexHashCode

public void setIsFieldIndexHashCode(boolean fieldIndexed)

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getMatches

public int getMatches()

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setMatches

public void setMatches(int matches)

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getLastHandle

public InternalFactHandle getLastHandle()

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get

public InternalFactHandle get(Declaration declaration)

Description copied from interface: Tuple

Returns the FactHandle for the given Declaration, which in turn specifcy the Pattern that they depend on.

Specified by:

get in interface Tuple

Parameters:

declaration - The Declaration which specifies the Pattern

Returns:

The FactHandle

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getActivation

public Activation getActivation()

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getFactHandles

public InternalFactHandle[] getFactHandles()

Returns the fact handles in reverse order

Specified by:

getFactHandles in interface Tuple

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getRecency

public long getRecency()

Description copied from interface: Tuple

Returns the tuple recency

Specified by:

getRecency in interface Tuple

Returns:

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setActivation

public void setActivation(Activation activation)

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hashCode

public int hashCode()

Overrides:

hashCode in class Object

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toString

public String toString()

Overrides:

toString in class Object

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equals

public boolean equals(ReteTuple other)

We use this equals method to avoid the cast

Parameters:

tuple -

Returns:

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equals

public boolean equals(Object object)

Overrides:

equals in class Object

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size

public int size()

Description copied from interface: Tuple

Returns the size of this tuple in number of elements (patterns)

Specified by:

size in interface Tuple

Returns:

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getSubTuple

public ReteTuple getSubTuple(int elements)

Returns the ReteTuple that contains the "elements" first elements in this tuple. Use carefully as no cloning is made during this process. This method is used by TupleStartEqualsConstraint when joining a subnetwork tuple into the main network tuple;

Parameters:

elements - the number of elements to return, starting from the begining of the tuple

Returns:

a ReteTuple containing the "elements" first elements of this tuple or null if "elements" is greater than size;

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