Interface LoadableConstantEntry

All Superinterfaces:

PoolEntryPREVIEW

All Known Subinterfaces:

ClassEntryPREVIEW, ConstantDynamicEntryPREVIEW, ConstantValueEntryPREVIEW, DoubleEntryPREVIEW, FloatEntryPREVIEW, IntegerEntryPREVIEW, LongEntryPREVIEW, MethodHandleEntryPREVIEW, MethodTypeEntryPREVIEW, StringEntryPREVIEW

public sealed interface LoadableConstantEntry
extends PoolEntryPREVIEW
permits ClassEntryPREVIEW, ConstantDynamicEntryPREVIEW, ConstantValueEntryPREVIEW, MethodHandleEntryPREVIEW, MethodTypeEntryPREVIEW

LoadableConstantEntry is a preview API of the Java platform.

Programs can only use LoadableConstantEntry when preview features are enabled.

Preview features may be removed in a future release, or upgraded to permanent features of the Java platform.

Marker interface for constant pool entries suitable for loading via the LDC instructions.

Since:

22

Field Summary

Fields declared in interface java.lang.classfile.constantpool.PoolEntry^PREVIEW

TAG_CLASS, TAG_DOUBLE, TAG_DYNAMIC, TAG_FIELDREF, TAG_FLOAT, TAG_INTEGER, TAG_INTERFACE_METHODREF, TAG_INVOKE_DYNAMIC, TAG_LONG, TAG_METHOD_HANDLE, TAG_METHOD_TYPE, TAG_METHODREF, TAG_MODULE, TAG_NAME_AND_TYPE, TAG_PACKAGE, TAG_STRING, TAG_UTF8

Method Summary

Modifier and Type	Method	Description
ConstantDesc	constantValue()	Returns the constant described by this entry.
default TypeKindPREVIEW	typeKind()	Returns the type of the constant.

Methods declared in interface java.lang.classfile.constantpool.PoolEntry^PREVIEW

constantPool, index, tag, width

Method Details

constantValue

ConstantDesc constantValue()

Returns the constant described by this entry.

Returns:

the constant described by this entry

typeKind

default TypeKindPREVIEW typeKind()

Returns the type of the constant.

Returns:

the type of the constant