java.lang.classfile.constantpool

public sealed Interface PackageEntry

Known Direct Implementers: jdk.internal.classfile.impl.AbstractPoolEntry.PackageEntryImpl
Imports: java.lang.constant.PackageDesc, jdk.internal.classfile.impl.AbstractPoolEntry

Models a CONSTANT_Package_info, representing a package, in the constant pool of a class file.

The use of a PackageEntry is represented by a PackageDesc that does not represent the unnamed package. Conversions are through ConstantPoolBuilder#packageEntry(PackageDesc) and asSymbol().

A package entry is composite:

PackageEntry(Utf8Entry name)

where name is the internal form of a binary package name and is not empty.

Since: 24
Java Virtual Machine Specification: 4.4.12 The CONSTANT_Package_info Structure

Field Summary

Inherited from java.lang.classfile.constantpool.PoolEntry:: 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

Modifier and Type	Method and Description
public PackageDesc	Returns: a symbolic descriptor for the package name asSymbol() Returns a symbolic descriptor for the package name.
public boolean	Returns: whether this entry describes the given package matches(PackageDesc the package descriptor desc) Returns whether this entry describes the given package.
public Utf8Entry	Returns: the internal form of the package name name() Returns the internal form of the package name.

Inherited from java.lang.classfile.constantpool.PoolEntry:: constantPool index tag width

asSymbol back to summary

asSymbol	back to summary
public PackageDesc asSymbol() Returns a symbolic descriptor for the package name. API Note If only symbol equivalence is desired, `matches` should be used. It requires reduced parsing and can improve `class` file reading performance. Returns:PackageDesc a symbolic descriptor for the package name

public PackageDesc asSymbol()

Returns a symbolic descriptor for the package name.

API Note

If only symbol equivalence is desired, matches should be used. It requires reduced parsing and can improve class file reading performance.

matches	back to summary
public boolean matches(PackageDesc desc) Returns whether this entry describes the given package. Parameters desc:PackageDesc the package descriptor Returns:boolean whether this entry describes the given package Since 25

matches

public boolean matches(PackageDesc desc)

Returns whether this entry describes the given package.

Parameters

Returns:boolean

whether this entry describes the given package

Since

name	back to summary
public Utf8Entry name() Returns the internal form of the package name. Returns:Utf8Entry the internal form of the package name

name

public Utf8Entry name()

Returns the internal form of the package name.