CompositeGuardingDynamicLinker (Java SE 12 & JDK 12 )

java.lang.Object
- jdk.dynalink.linker.support.CompositeGuardingDynamicLinker

All Implemented Interfaces:

GuardingDynamicLinker
```
public class CompositeGuardingDynamicLinker
extends Object
implements GuardingDynamicLinker
```
A GuardingDynamicLinker that delegates sequentially to a list of other guarding dynamic linkers in its getGuardedInvocation(LinkRequest, LinkerServices).

Constructor Summary

Constructors
Constructor Description

CompositeGuardingDynamicLinker(Iterable<? extends GuardingDynamicLinker> linkers)
Creates a new composite linker.

Method Summary

Modifier and Type	Method	Description
`GuardedInvocation`	`getGuardedInvocation(LinkRequest linkRequest, LinkerServices linkerServices)`	Delegates the call to its component linkers.

Methods declared in class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - CompositeGuardingDynamicLinker
```
public CompositeGuardingDynamicLinker(Iterable<? extends GuardingDynamicLinker> linkers)
```
    Creates a new composite linker.
    
    Parameters:
    
    linkers - a list of component linkers.
    
    Throws:
    
    NullPointerException - if linkers or any of its elements are null.
- Method Detail
  - getGuardedInvocation
```
public GuardedInvocation getGuardedInvocation(LinkRequest linkRequest,
                                              LinkerServices linkerServices)
                                       throws Exception
```
    Delegates the call to its component linkers. The first non-null value returned from a component linker is returned. If no component linker returns a non-null invocation, null is returned.
    
    Specified by:
    
    getGuardedInvocation in interface GuardingDynamicLinker
    
    Parameters:
    
    linkRequest - the object describing the request for linking a particular invocation
    
    linkerServices - linker services
    
    Returns:
    
    the first non-null return value from a component linker, or null if none of the components returned a non-null.
    
    Throws:
    
    Exception - if the operation fails for whatever reason