Package org.apache.bcel.classfile

Class ElementValue

java.lang.Object

org.apache.bcel.classfile.ElementValue

Direct Known Subclasses:

AnnotationElementValue, ArrayElementValue, ClassElementValue, EnumElementValue, SimpleElementValue

public abstract class ElementValue
extends Object

The element_value structure is documented at https://docs.oracle.com/javase/specs/jvms/se11/html/jvms-4.html#jvms-4.7.16.1

 element_value {
    u1 tag;
    union {
        u2 const_value_index;

        {   u2 type_name_index;
            u2 const_name_index;
        } enum_const_value;

        u2 class_info_index;

        annotation annotation_value;

        {   u2            num_values;
            element_value values[num_values];
        } array_value;
    } value;
}

Since:

6.0

Field Summary

Fields

Modifier and Type	Field	Description
static final byte	ANNOTATION
static final byte	ARRAY
static final byte	CLASS
protected ConstantPool	cpool	Deprecated. (since 6.0) will be made private and final; do not access directly, use getter
(package private) static final ElementValue[]	EMPTY_ARRAY
static final byte	ENUM_CONSTANT
static final byte	PRIMITIVE_BOOLEAN
static final byte	PRIMITIVE_BYTE
static final byte	PRIMITIVE_CHAR
static final byte	PRIMITIVE_DOUBLE
static final byte	PRIMITIVE_FLOAT
static final byte	PRIMITIVE_INT
static final byte	PRIMITIVE_LONG
static final byte	PRIMITIVE_SHORT
static final byte	STRING
protected int	type	Deprecated. (since 6.0) will be made private and final; do not access directly, use getter

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	ElementValue(int type, ConstantPool cpool)

Method Summary

Modifier and Type	Method	Description
abstract void	dump(DataOutputStream dos)
(package private) final ConstantPool	getConstantPool()
int	getElementValueType()
(package private) final int	getType()
static ElementValue	readElementValue(DataInput input, ConstantPool cpool)	Reads an element_value as an ElementValue.
static ElementValue	readElementValue(DataInput input, ConstantPool cpool, int arrayNesting)	Reads an element_value as an ElementValue.
abstract String	stringifyValue()
String	toShortString()
String	toString()

Methods inherited from class java.lang.Object

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

Field Details

STRING

public static final byte STRING

See Also:

• Constant Field Values

ENUM_CONSTANT

public static final byte ENUM_CONSTANT

See Also:

• Constant Field Values

CLASS

public static final byte CLASS

See Also:

• Constant Field Values

ANNOTATION

public static final byte ANNOTATION

See Also:

• Constant Field Values

ARRAY

public static final byte ARRAY

See Also:

• Constant Field Values

PRIMITIVE_INT

public static final byte PRIMITIVE_INT

See Also:

• Constant Field Values

PRIMITIVE_BYTE

public static final byte PRIMITIVE_BYTE

See Also:

• Constant Field Values

PRIMITIVE_CHAR

public static final byte PRIMITIVE_CHAR

See Also:

• Constant Field Values

PRIMITIVE_DOUBLE

public static final byte PRIMITIVE_DOUBLE

See Also:

• Constant Field Values

PRIMITIVE_FLOAT

public static final byte PRIMITIVE_FLOAT

See Also:

• Constant Field Values

PRIMITIVE_LONG

public static final byte PRIMITIVE_LONG

See Also:

• Constant Field Values

PRIMITIVE_SHORT

public static final byte PRIMITIVE_SHORT

See Also:

• Constant Field Values

PRIMITIVE_BOOLEAN

public static final byte PRIMITIVE_BOOLEAN

See Also:

• Constant Field Values

EMPTY_ARRAY

static final ElementValue[] EMPTY_ARRAY

type

@Deprecated
protected int type

Deprecated.

(since 6.0) will be made private and final; do not access directly, use getter

cpool

@Deprecated
protected ConstantPool cpool

Deprecated.

(since 6.0) will be made private and final; do not access directly, use getter

Constructor Details

ElementValue

protected ElementValue(int type,
 ConstantPool cpool)

Method Details

readElementValue

public static ElementValue readElementValue(DataInput input,
 ConstantPool cpool)
                                     throws IOException

Reads an element_value as an ElementValue.

Parameters:

input - Raw data input.

cpool - Constant pool.

Returns:

a new ElementValue.

Throws:

IOException - if an I/O error occurs.

readElementValue

public static ElementValue readElementValue(DataInput input,
 ConstantPool cpool,
 int arrayNesting)
                                     throws IOException

Reads an element_value as an ElementValue.

Parameters:

input - Raw data input.

cpool - Constant pool.

arrayNesting - level of current array nesting.

Returns:

a new ElementValue.

Throws:

IOException - if an I/O error occurs.

Since:

6.7.0

dump

public abstract void dump(DataOutputStream dos)
                   throws IOException

Throws:

IOException

getConstantPool

final ConstantPool getConstantPool()

Since:

6.0

getElementValueType

public int getElementValueType()

getType

final int getType()

Since:

6.0

stringifyValue

public abstract String stringifyValue()

toShortString

public String toShortString()

toString

public String toString()

Overrides:

toString in class Object