Module java.base

Package java.lang.classfile^PREVIEW

Enum Class ClassFile.ConstantPoolSharingOption

java.lang.Object

java.lang.Enum<ClassFile.ConstantPoolSharingOption^PREVIEW>

java.lang.classfile.ClassFile.ConstantPoolSharingOption

All Implemented Interfaces:

Serializable, ClassFile.OptionPREVIEW, Comparable<ClassFile.ConstantPoolSharingOptionPREVIEW>, Constable

Enclosing interface:

ClassFilePREVIEW

public static enum ClassFile.ConstantPoolSharingOption
extends Enum<ClassFile.ConstantPoolSharingOptionPREVIEW>
implements ClassFile.OptionPREVIEW

ConstantPoolSharingOption is a preview API of the Java platform.

Programs can only use ConstantPoolSharingOption when preview features are enabled.

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

Option describing whether to preserve the original constant pool when transforming a classfile. Reusing the constant pool enables significant optimizations in processing time and minimizes differences between the original and transformed classfile, but may result in a bigger classfile when a classfile is significantly transformed. Default is SHARED_POOL to preserve the original constant pool.

Since:

22

Nested Class Summary

Nested classes/interfaces declared in class java.lang.Enum

Enum.EnumDesc<E extends Enum<E>>

Enum Constant Summary

Enum Constants

Enum Constant	Description
NEW_POOL	Creates a new constant pool when transforming classfile
SHARED_POOL	Preserves the original constant pool when transforming classfile

Method Summary

Modifier and Type	Method	Description
static ClassFile.ConstantPoolSharingOptionPREVIEW	valueOf(String name)	Returns the enum constant of this class with the specified name.
static ClassFile.ConstantPoolSharingOptionPREVIEW[]	values()	Returns an array containing the constants of this enum class, in the order they are declared.

Methods declared in class java.lang.Enum

clone, compareTo, describeConstable, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods declared in class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Details

SHARED_POOL

public static final ClassFile.ConstantPoolSharingOptionPREVIEW SHARED_POOL

Preserves the original constant pool when transforming classfile

NEW_POOL

public static final ClassFile.ConstantPoolSharingOptionPREVIEW NEW_POOL

Creates a new constant pool when transforming classfile

Method Details

values

public static ClassFile.ConstantPoolSharingOptionPREVIEW[] values()

Returns an array containing the constants of this enum class, in the order they are declared.

Returns:

an array containing the constants of this enum class, in the order they are declared

valueOf

public static ClassFile.ConstantPoolSharingOptionPREVIEW valueOf(String name)

Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum class has no constant with the specified name

NullPointerException - if the argument is null