Package dev.cel.runtime

Interface CelFunctionOverload

All Known Subinterfaces:

Registrar.Function

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@Immutable
@FunctionalInterface
public interface CelFunctionOverload

Interface describing the general signature of all CEL custom function implementations.

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static interface	CelFunctionOverload.Binary<T1,T2>	Helper interface for describing binary functions where the type parameters are used to improve compile-time correctness of function bindings.
static interface	CelFunctionOverload.Unary<T>	Helper interface for describing unary functions where the type-parameter is used to improve compile-time correctness of function bindings.

Method Summary

Modifier and Type	Method	Description
java.lang.Object	apply(java.lang.Object[] args)	Evaluate a set of arguments throwing a CelException on error.
static boolean	canHandle(java.lang.Object[] arguments, com.google.common.collect.ImmutableList<java.lang.Class<?>> parameterTypes, boolean isStrict)	Returns true if the overload's expected argument types match the types of the given arguments.
static boolean	canHandle(java.lang.Object arg, com.google.common.collect.ImmutableList<java.lang.Class<?>> parameterTypes, boolean isStrict)
static boolean	canHandle(java.lang.Object arg1, java.lang.Object arg2, com.google.common.collect.ImmutableList<java.lang.Class<?>> parameterTypes, boolean isStrict)
static boolean	canHandleArg(java.lang.Object arg, java.lang.Class<?> paramType, boolean isStrict)

Method Detail

apply

java.lang.Object apply(java.lang.Object[] args)
                throws CelEvaluationException

Evaluate a set of arguments throwing a CelException on error.

Throws:

CelEvaluationException

canHandle

static boolean canHandle(java.lang.Object[] arguments,
                         com.google.common.collect.ImmutableList<java.lang.Class<?>> parameterTypes,
                         boolean isStrict)

Returns true if the overload's expected argument types match the types of the given arguments.

canHandle

static boolean canHandle(java.lang.Object arg,
                         com.google.common.collect.ImmutableList<java.lang.Class<?>> parameterTypes,
                         boolean isStrict)

canHandle

static boolean canHandle(java.lang.Object arg1,
                         java.lang.Object arg2,
                         com.google.common.collect.ImmutableList<java.lang.Class<?>> parameterTypes,
                         boolean isStrict)

canHandleArg

static boolean canHandleArg(java.lang.Object arg,
                            java.lang.Class<?> paramType,
                            boolean isStrict)