Interface LinkRequest
- All Known Implementing Classes:
SimpleLinkRequest
public interface LinkRequest
Represents a request to link a particular invocation at a particular call site. Instances of these requests will be constructed and passed to all GuardingDynamicLinker objects managed by the DynamicLinker that is trying to link the call site.
Methods
| Modifier and Type | Method | Description |
|---|---|---|
Object[] | getArguments() | Returns the arguments for the invocation being linked. |
CallSiteDescriptor | getCallSiteDescriptor() | Returns the call site descriptor for the call site being linked. |
Object | getReceiver() | Returns the first argument for the invocation being linked; this is typically the receiver object. |
boolean | isCallSiteUnstable() | Returns true if the call site is considered unstable, that is, it has been relinked more times than was specified in |
LinkRequest | replaceArguments(CallSiteDescriptor callSiteDescriptor,
Object... arguments) | Returns a request identical to this one with call site descriptor and arguments replaced with the ones specified. |
Methods
getCallSiteDescriptor
CallSiteDescriptor getCallSiteDescriptor()
Returns the call site descriptor for the call site being linked.
- Returns:
- the call site descriptor for the call site being linked.
getArguments
Object[] getArguments()
Returns the arguments for the invocation being linked. The returned array must be a clone; modifications to it must not affect the arguments in this request.
- Returns:
- the arguments for the invocation being linked.
getReceiver
Object getReceiver()
Returns the first argument for the invocation being linked; this is typically the receiver object. This is a shorthand for getArguments()[0] that also avoids the cloning of the arguments array.
- Returns:
- the receiver object.
isCallSiteUnstable
boolean isCallSiteUnstable()
Returns true if the call site is considered unstable, that is, it has been relinked more times than was specified in DynamicLinkerFactory.setUnstableRelinkThreshold(int). Linkers should use this as a hint to prefer producing linkage that is more stable (its guard fails less frequently), even if that assumption causes a less effective version of an operation to be linked. This is just a hint, though, and linkers are allowed to ignore this property.
- Returns:
- true if the call site is considered unstable.
replaceArguments
LinkRequest replaceArguments(CallSiteDescriptor callSiteDescriptor,
Object... arguments) Returns a request identical to this one with call site descriptor and arguments replaced with the ones specified.
- Parameters:
-
callSiteDescriptor- the new call site descriptor -
arguments- the new arguments - Returns:
- a new request identical to this one, except with the call site descriptor and arguments replaced with the specified ones.
© 1993, 2020, Oracle and/or its affiliates. All rights reserved.
Documentation extracted from Debian's OpenJDK Development Kit package.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
Various third party code in OpenJDK is licensed under different licenses (see Debian package).
Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.
https://docs.oracle.com/en/java/javase/11/docs/api/jdk.dynalink/jdk/dynalink/linker/LinkRequest.html