org.drools.runtime.conf
Enum QueryListenerOption

java.lang.Object
  extended by java.lang.Enum<QueryListenerOption>
      extended by org.drools.runtime.conf.QueryListenerOption
All Implemented Interfaces:
Serializable, Comparable<QueryListenerOption>, Option, KnowledgeSessionOption, SingleValueKnowledgeSessionOption

public enum QueryListenerOption
extends Enum<QueryListenerOption>
implements SingleValueKnowledgeSessionOption

An enum to configure the session query listener configuration. Query results are collected by a listener class. The "STANDARD" query listener class copies and disconnects fact handles and objects for query results, making them somewhat resilient to some working memory actions. But this copying is costly. For the cases where no concurrency exists between query execution and other working memory actions, a lightweight listener implementation can be used, preventing the copy and improving query performance significantly.


Enum Constant Summary
LIGHTWEIGHT
           
STANDARD
           
 
Field Summary
static String PROPERTY_NAME
          The property name for the clock type configuration
 
Method Summary
static QueryListenerOption determineQueryListenerClassOption(String option)
           
 String getAsString()
           
 String getPropertyName()
          Returns the property name for this option
 String toString()
           
static QueryListenerOption valueOf(String name)
          Returns the enum constant of this type with the specified name.
static QueryListenerOption[] 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, valueOf
 
Methods inherited from class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait
 

Enum Constant Detail

STANDARD

public static final QueryListenerOption STANDARD

LIGHTWEIGHT

public static final QueryListenerOption LIGHTWEIGHT
Field Detail

PROPERTY_NAME

public static final String PROPERTY_NAME
The property name for the clock type configuration

See Also:
Constant Field Values
Method Detail

values

public static QueryListenerOption[] 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 (QueryListenerOption c : QueryListenerOption.values())
    System.out.println(c);

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

valueOf

public static QueryListenerOption 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:

getAsString

public String getAsString()

toString

public String toString()
Overrides:
toString in class Enum<QueryListenerOption>

determineQueryListenerClassOption

public static QueryListenerOption determineQueryListenerClassOption(String option)


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