Package org.kie.api.runtime.conf

# Enum Class QueryListenerOption

java.lang.Object
java.lang.Enum<QueryListenerOption>
org.kie.api.runtime.conf.QueryListenerOption

All Implemented Interfaces:
  `Serializable`, `Comparable<QueryListenerOption>`, `Constable`, `Option`, `SingleValueOption`, `KieSessionOption`, `SingleValueKieSessionOption`, `SingleValueRuleRuntimeOption`

public enum QueryListenerOption extends Enum<QueryListenerOption> implements SingleValueRuleRuntimeOption
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.

- ## Nested Class Summary

  ## Nested classes/interfaces inherited from class java.lang.Enum

  `Enum.EnumDesc<E extends Enum<E>>`

- ## Enum Constant Summary

  Enum Constants
  Enum Constant
  Description
  `LIGHTWEIGHT`
  `STANDARD`

- ## Field Summary

  Fields
  Modifier and Type
  Field
  Description
  `static OptionKey<QueryListenerOption>`
  `KEY`
  `static final String`
  `PROPERTY_NAME`
  The property name for the clock type configuration

  ### Fields inherited from interface org.kie.api.runtime.conf.SingleValueRuleRuntimeOption

  `TYPE`

- ## Method Summary

  Modifier and Type
  Method
  Description
  `static QueryListenerOption`
  `determineQueryListenerClassOption(String option)`
  `String`
  `getAsString()`
  `String`
  `getPropertyName()`
  `String`
  `toString()`
  `static QueryListenerOption`
  `valueOf(String name)`
  Returns the enum constant of this class with the specified name.
  `static QueryListenerOption[]`
  `values()`
  Returns an array containing the constants of this enum class, in the order they are declared.

  ### Methods inherited from class java.lang.Enum

  `clone, compareTo, describeConstable, equals, finalize, getDeclaringClass, hashCode, name, ordinal, valueOf`

  ### Methods inherited from class java.lang.Object

  `getClass, notify, notifyAll, wait, wait, wait`

  ### Methods inherited from interface org.kie.api.conf.Option

  `propertyName`

  ### Methods inherited from interface org.kie.api.runtime.conf.SingleValueRuleRuntimeOption

  `type`

- ## Enum Constant Details

  - ### STANDARD

    public static final QueryListenerOption STANDARD

  - ### LIGHTWEIGHT

    public static final QueryListenerOption LIGHTWEIGHT

- ## Field Details

  - ### PROPERTY_NAME

    public static final String PROPERTY_NAME
    The property name for the clock type configuration
    See Also:
      - Constant Field Values

  - ### KEY

    public static OptionKey<QueryListenerOption> KEY

- ## Method Details

  - ### values

    public static QueryListenerOption[] values()
    Returns an array containing the constants of this enum class, in the order they are declared.
    Returns:
      an array containing the constants of this enum class, in the order they are declared

  - ### valueOf

    public static QueryListenerOption valueOf(String name)
    Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (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 class has no constant with the specified name
      `NullPointerException` - if the argument is null

  - ### getPropertyName

    public String getPropertyName()
    Specified by:
      `getPropertyName` in interface `Option`
    Returns:
      the property name for this option

  - ### getAsString

    public String getAsString()

  - ### toString

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

  - ### determineQueryListenerClassOption

    public static QueryListenerOption determineQueryListenerClassOption(String option)