Module jdk.dynalink
Package jdk.dynalink.linker

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 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.