org.elasticsearch.painless

Class FunctionRef

java.lang.Object

org.elasticsearch.painless.FunctionRef

public class FunctionRef
extends java.lang.Object

Contains all the values necessary to write the instruction to initiate a LambdaBootstrap for either a function reference or a user-defined lambda function.

Field Summary

Fields

Modifier and Type	Field and Description
java.lang.String	delegateClassName class of the delegate method to be called
int	delegateInvokeType the invocation type of the delegate method
java.lang.String	delegateMethodName the name of the delegate method
java.lang.invoke.MethodType	delegateMethodType delegate method signature
java.lang.invoke.MethodType	factoryMethodType factory (CallSite) method signature
java.lang.String	interfaceMethodName functional interface method name
java.lang.invoke.MethodType	interfaceMethodType functional interface method signature
boolean	isDelegateInterface whether a call is made on a delegate interface

Method Summary

Modifier and Type	Method and Description
static FunctionRef	create(PainlessLookup painlessLookup, java.util.Map<java.lang.String,Locals.LocalMethod> localMethods, Location location, java.lang.Class<?> targetClass, java.lang.String typeName, java.lang.String methodName, int numberOfCaptures) Creates a new FunctionRef which will resolve type::call from the whitelist.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

interfaceMethodName

public final java.lang.String interfaceMethodName

functional interface method name

interfaceMethodType

public final java.lang.invoke.MethodType interfaceMethodType

functional interface method signature

delegateClassName

public final java.lang.String delegateClassName

class of the delegate method to be called

isDelegateInterface

public final boolean isDelegateInterface

whether a call is made on a delegate interface

delegateInvokeType

public final int delegateInvokeType

the invocation type of the delegate method

delegateMethodName

public final java.lang.String delegateMethodName

the name of the delegate method

delegateMethodType

public final java.lang.invoke.MethodType delegateMethodType

delegate method signature

factoryMethodType

public final java.lang.invoke.MethodType factoryMethodType

factory (CallSite) method signature

Method Detail

create

public static FunctionRef create(PainlessLookup painlessLookup,
                                 java.util.Map<java.lang.String,Locals.LocalMethod> localMethods,
                                 Location location,
                                 java.lang.Class<?> targetClass,
                                 java.lang.String typeName,
                                 java.lang.String methodName,
                                 int numberOfCaptures)

Creates a new FunctionRef which will resolve type::call from the whitelist.

Parameters:

painlessLookup - the whitelist against which this script is being compiled

localMethods - user-defined and synthetic methods generated directly on the script class

location - the character number within the script at compile-time

targetClass - functional interface type to implement.

typeName - the left hand side of a method reference expression

methodName - the right hand side of a method reference expression

numberOfCaptures - number of captured arguments