Package dev.cel.runtime

Class StandardTypeResolver

java.lang.Object

dev.cel.runtime.StandardTypeResolver

All Implemented Interfaces:

TypeResolver

@Immutable
@Internal
public final class StandardTypeResolver
extends java.lang.Object
implements TypeResolver

The StandardTypeResolver implements the TypeResolver and resolves types supported by the CEL standard environment.

CEL Library Internals. Do Not Use.

Method Summary

Modifier and Type	Method	Description
@Nullable Value	adaptType(@Nullable Type type)	Deprecated.
@Nullable Value	adaptType(CelType type)	Adapt the check-time type instance to a runtime Value.
static TypeResolver	getInstance(CelOptions celOptions)	Obtain a singleton instance of the StandardTypeResolver appropriate for the celOptions provided.
@Nullable Value	resolveObjectType(java.lang.Object obj, @Nullable Value checkedTypeValue)	Resolve the CEL type of the obj, using the checkedTypeValue as hint for type disambiguation.

Methods inherited from class java.lang.Object

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

Method Detail

getInstance

public static TypeResolver getInstance(CelOptions celOptions)

Obtain a singleton instance of the StandardTypeResolver appropriate for the celOptions provided.

resolveObjectType

public @Nullable Value resolveObjectType(java.lang.Object obj,
                                         @Nullable Value checkedTypeValue)

Description copied from interface: TypeResolver

Resolve the CEL type of the obj, using the checkedTypeValue as hint for type disambiguation.

The checkedTypeValue indicates the statically determined type of the object at check-time. Often, the check-time and runtime phases agree, but there are cases where the runtime type is ambiguous, as is the case when a Long value is supplied as this could either be an int, uint, or enum type.

Type resolution is biased toward the runtime value type, given the dynamically typed nature of CEL.

Specified by:

resolveObjectType in interface TypeResolver

adaptType

public @Nullable Value adaptType(CelType type)

Adapt the check-time type instance to a runtime Value.

When the checked type does not have a runtime equivalent, e.g. Type#DYN, the return value will be null.

Specified by:

adaptType in interface TypeResolver

adaptType

@Deprecated
public @Nullable Value adaptType(@Nullable Type type)

Deprecated.

Adapt the check-time type instance to a runtime Value.

When the checked type does not have a runtime equivalent, e.g. Type#DYN, the return value will be null.

Specified by:

adaptType in interface TypeResolver