Class CompositeTypeBasedGuardingDynamicLinker

  • java.lang.Object
    • jdk.dynalink.linker.support.CompositeTypeBasedGuardingDynamicLinker
All Implemented Interfaces:
GuardingDynamicLinker, TypeBasedGuardingDynamicLinker 
public class CompositeTypeBasedGuardingDynamicLinker
extends Object
implements TypeBasedGuardingDynamicLinker

A composite type-based guarding dynamic linker. When a receiver of a not yet seen class is encountered, all linkers are queried sequentially on their TypeBasedGuardingDynamicLinker.canLinkType(Class) method. The linkers returning true are then bound to the class, and next time a receiver of same type is encountered, the linking is delegated to those linkers only, speeding up dispatch.

Constructors

Constructor Description
CompositeTypeBasedGuardingDynamicLinker​(Iterable<? extends TypeBasedGuardingDynamicLinker> linkers)

Creates a new composite type-based linker.

Methods

Modifier and Type Method Description
boolean canLinkType​(Class<?> type)

Returns true if at least one of the composite linkers returns true from TypeBasedGuardingDynamicLinker.canLinkType(Class) for the type.
static List<GuardingDynamicLinker> optimize​(Iterable<? extends GuardingDynamicLinker> linkers)

Optimizes a list of type-based linkers.

Methods declared in class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods declared in interface jdk.dynalink.linker.GuardingDynamicLinker

getGuardedInvocation

Constructors

CompositeTypeBasedGuardingDynamicLinker

public CompositeTypeBasedGuardingDynamicLinker(Iterable<? extends TypeBasedGuardingDynamicLinker> linkers)

Creates a new composite type-based linker.

Parameters:
linkers - the component linkers
Throws:
NullPointerException - if linkers or any of its elements are null.

Methods

canLinkType

public boolean canLinkType(Class<?> type)

Returns true if at least one of the composite linkers returns true from TypeBasedGuardingDynamicLinker.canLinkType(Class) for the type.

Specified by:
canLinkType in interface TypeBasedGuardingDynamicLinker
Parameters:
type - the type to link
Returns:
true true if at least one of the composite linkers returns true from TypeBasedGuardingDynamicLinker.canLinkType(Class), false otherwise.

optimize

public static List<GuardingDynamicLinker> optimize(Iterable<? extends GuardingDynamicLinker> linkers)

Optimizes a list of type-based linkers. If a group of adjacent linkers in the list all implement TypeBasedGuardingDynamicLinker, they will be replaced with a single instance of CompositeTypeBasedGuardingDynamicLinker that contains them.

Parameters:
linkers - the list of linkers to optimize
Returns:
the optimized list
Throws:
NullPointerException - if linkers or any of its elements are null.