org.drools.builder.conf
Enum LRUnlinkingOption

java.lang.Object
  java.lang.Enum<LRUnlinkingOption>
      org.drools.builder.conf.LRUnlinkingOption

All Implemented Interfaces:

Serializable, Comparable<LRUnlinkingOption>, KnowledgeBaseOption, Option, SingleValueKnowledgeBaseOption

public enum LRUnlinkingOption
extends Enum<LRUnlinkingOption>
implements SingleValueKnowledgeBaseOption

An Enum for Left & Right Unlinking option.

 drools.lrUnlinkingEnabled = <true|false>
 

DEFAULT = false.

Left & Right unlinking is a RETE optimization that leads to improvements in performance and memory consumption, mainly for large rule bases. It is still an experimental feature in Drools and not active by default. For further details, have look at this blog entry.

Note: It will NOT work when:

• SequentialOption is used, because in sequential mode we disable node memory, which is mandatory for L&R Unlinking to work;
• MultithreadEvaluationOption is used.

Enum Constant Summary

DISABLED

ENABLED

Field Summary

static String

PROPERTY_NAME The property name for the L&R Unlinking option

Method Summary

String	getPropertyName() Returns the property name for this option
boolean	isLRUnlinkingEnabled()
static LRUnlinkingOption	valueOf(String name) Returns the enum constant of this type with the specified name.
static LRUnlinkingOption[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

ENABLED

public static final LRUnlinkingOption ENABLED

DISABLED

public static final LRUnlinkingOption DISABLED

Field Detail

PROPERTY_NAME

public static final String PROPERTY_NAME

The property name for the L&R Unlinking option

See Also:

Constant Field Values

Method Detail

values

public static LRUnlinkingOption[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (LRUnlinkingOption c : LRUnlinkingOption.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static LRUnlinkingOption valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null

getPropertyName

public String getPropertyName()

Returns the property name for this option

Specified by:

getPropertyName in interface Option

Returns:

isLRUnlinkingEnabled

public boolean isLRUnlinkingEnabled()