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.Method Summary
| 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 DynamicLinkerFactory.setUnstableRelinkThreshold(int). |
LinkRequest |
replaceArguments |
Returns a request identical to this one with call site descriptor and arguments replaced with the ones specified. |
Method Details
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.
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https://docs.oracle.com/en/java/javase/17/docs/api/jdk.dynalink/jdk/dynalink/linker/LinkRequest.html