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EqualityKey (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 EqualityKey

java.lang.Object
  org.drools.common.EqualityKey

All Implemented Interfaces:

Serializable

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public class EqualityKey
extends Object
implements Serializable

Upon instantiation the EqualityKey caches the first Object's hashCode this can never change. The EqualityKey has an internal datastructure which references all the handles which are equal. It also records Whether the referenced facts are JUSTIFIED or STATED

Author:

Mark Proctor

See Also:

Serialized Form

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Field Summary
static int	JUSTIFIED
static int	STATED

 

Constructor Summary
EqualityKey(InternalFactHandle handle)
EqualityKey(InternalFactHandle handle, int status)

 

Method Summary
void	addFactHandle(InternalFactHandle handle)
boolean	equals(Object object)           Equality for the EqualityKey means two things.
InternalFactHandle	getFactHandle()
List	getOtherFactHandle()
int	getStatus()
int	hashCode()           Returns the cached hashCode
boolean	isEmpty()
void	removeFactHandle(InternalFactHandle handle)
void	setStatus(int status)
int	size()
String	toString()

 

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

 

Field Detail

STATED

public static final int STATED

See Also:

Constant Field Values

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JUSTIFIED

public static final int JUSTIFIED

See Also:

Constant Field Values

Constructor Detail

EqualityKey

public EqualityKey(InternalFactHandle handle)

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EqualityKey

public EqualityKey(InternalFactHandle handle,
                   int status)

Method Detail

getFactHandle

public InternalFactHandle getFactHandle()

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getOtherFactHandle

public List getOtherFactHandle()

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addFactHandle

public void addFactHandle(InternalFactHandle handle)

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removeFactHandle

public void removeFactHandle(InternalFactHandle handle)

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getStatus

public int getStatus()

Returns:

the status

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setStatus

public void setStatus(int status)

Parameters:

status - the status to set

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size

public int size()

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isEmpty

public boolean isEmpty()

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toString

public String toString()

Overrides:

toString in class Object

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hashCode

public int hashCode()

Returns the cached hashCode

Overrides:

hashCode in class Object

See Also:

Object.hashCode()

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equals

public boolean equals(Object object)

Equality for the EqualityKey means two things. It returns true if the object is also an EqualityKey the of the same the same identity as this. It also returns true if the object is equal to the head FactHandle's referenced Object.

Overrides:

equals in class Object

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