Interface NameAndTypeEntry

All Superinterfaces:

PoolEntry

public sealed interface NameAndTypeEntry
extends PoolEntry

Models a CONSTANT_NameAndType_info structure, representing a field or method, in the constant pool of a class file.

The use of a NameAndTypeEntry is symbolically represented as a String name, and a ClassDesc or a MethodTypeDesc type, depending on where this NameAndTypeEntry appears. The accessors to the symbolic descriptors for the type is defined on a per-use-site basis, such as FieldRefEntry.typeSymbol() returning a ClassDesc, and MethodRefEntry.typeSymbol() returning a MethodTypeDesc.

A name and type entry is composite:

NameAndTypeEntry(
    Utf8Entry name,
    Utf8Entry type
)

where name is an unqualified name, and type is a field or method descriptor string.

See Java Virtual Machine Specification:

4.4.6 The CONSTANT_NameAndType_info Structure

Since:

24

Field Summary

Fields declared in interface 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	Field	Description
static final int	TAG_CLASS	The tag for CONSTANT_Class constant kind.
static final int	TAG_DOUBLE	The tag for CONSTANT_Double constant kind.
static final int	TAG_DYNAMIC	The tag for CONSTANT_Dynamic constant kind.
static final int	TAG_FIELDREF	The tag for CONSTANT_Fieldref constant kind.
static final int	TAG_FLOAT	The tag for CONSTANT_Float constant kind.
static final int	TAG_INTEGER	The tag for CONSTANT_Integer constant kind.
static final int	TAG_INTERFACE_METHODREF	The tag for CONSTANT_InterfaceMethodref constant kind.
static final int	TAG_INVOKE_DYNAMIC	The tag for CONSTANT_InvokeDynamic constant kind.
static final int	TAG_LONG	The tag for CONSTANT_Long constant kind.
static final int	TAG_METHOD_HANDLE	The tag for CONSTANT_MethodHandle constant kind.
static final int	TAG_METHOD_TYPE	The tag for CONSTANT_MethodType constant kind.
static final int	TAG_METHODREF	The tag for CONSTANT_Methodref constant kind.
static final int	TAG_MODULE	The tag for CONSTANT_Module constant kind.
static final int	TAG_NAME_AND_TYPE	The tag for CONSTANT_NameAndType constant kind.
static final int	TAG_PACKAGE	The tag for CONSTANT_Package constant kind.
static final int	TAG_STRING	The tag for CONSTANT_String constant kind.
static final int	TAG_UTF8	The tag for CONSTANT_Utf8 constant kind.

Method Summary

Modifier and Type	Method	Description
Utf8Entry	name()	Returns the field or method name.
Utf8Entry	type()	Returns the field or method descriptor string.

Methods declared in interface PoolEntry

constantPool, index, tag, width

Modifier and Type	Method	Description
ConstantPool	constantPool()	Returns the constant pool this entry is from.
int	index()	Returns the index within the constant pool corresponding to this entry.
int	tag()	Returns the constant pool tag that describes the type of this entry.
int	width()	Returns the number of constant pool slots this entry consumes.

Method Details

name

Utf8Entry name()

Returns the field or method name.

Returns:

the field or method name

type

Utf8Entry type()

Returns the field or method descriptor string. It is a method descriptor strings if it starts with (. Otherwise, it is a field descriptor string, and must start with one of the BCDFIJSZL[ characters.

Returns:

the field or method descriptor string