- 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 theirTypeBasedGuardingDynamicLinker.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.
Constructor Summary
Constructors Constructor Description CompositeTypeBasedGuardingDynamicLinker(Iterable<? extends TypeBasedGuardingDynamicLinker> linkers)Creates a new composite type-based linker.
Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description booleancanLinkType(Class<?> type)Returns true if at least one of the composite linkers returns true fromTypeBasedGuardingDynamicLinker.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
Constructor Detail
CompositeTypeBasedGuardingDynamicLinker
public CompositeTypeBasedGuardingDynamicLinker(Iterable<? extends TypeBasedGuardingDynamicLinker> linkers)
Creates a new composite type-based linker.- Parameters:
linkers- the component linkers- Throws:
NullPointerException- iflinkersor any of its elements are null.
Method Detail
canLinkType
public boolean canLinkType(Class<?> type)
Returns true if at least one of the composite linkers returns true fromTypeBasedGuardingDynamicLinker.canLinkType(Class)for the type.- Specified by:
canLinkTypein interfaceTypeBasedGuardingDynamicLinker- 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 implementTypeBasedGuardingDynamicLinker, they will be replaced with a single instance ofCompositeTypeBasedGuardingDynamicLinkerthat contains them.- Parameters:
linkers- the list of linkers to optimize- Returns:
- the optimized list
- Throws:
NullPointerException- iflinkersor any of its elements are null.