Package org.fife.rsta.ac.java.classreader

Class FieldInfo

java.lang.Object

org.fife.rsta.ac.java.classreader.MemberInfo

org.fife.rsta.ac.java.classreader.FieldInfo

public class FieldInfo
extends MemberInfo

Represents a "field_info" structure as defined by the Java VM spec.

Version:

1.0

Field Summary

Fields

Modifier and Type	Field	Description
private List<AttributeInfo>	attributes	An array of attributes of this field.
static final String	CONSTANT_VALUE
private int	descriptorIndex	Index into the constant pool of a ConstantUtf8Info structure representing a valid field descriptor.
private int	nameIndex	Index into the constant pool of a ConstantUtf8Info structure representing the field name, as a simple name.

Fields inherited from class org.fife.rsta.ac.java.classreader.MemberInfo

cf, DEPRECATED, RUNTIME_VISIBLE_ANNOTATIONS, SIGNATURE

Constructor Summary

Constructors

Constructor	Description
FieldInfo(ClassFile cf, int accessFlags, int nameIndex, int descriptorIndex)	Constructor.

Method Summary

Modifier and Type	Method	Description
void	addAttribute(AttributeInfo info)	Adds the specified attribute to this field.
AttributeInfo	getAttribute(int index)	Returns the specified attribute.
int	getAttributeCount()	Returns the number of attributes of this field.
String	getConstantValueAsString()	Returns this constant value as a string.
private ConstantValue	getConstantValueAttributeInfo()	Returns the ConstantValue attribute info for this field, if any.
String	getDescriptor()	Returns the field descriptor of this field.
String	getName()	Returns the name of this member.
int	getNameIndex()	Returns the index into the constant pool of a ConstantUtf8Info structure representing the field name, as a simple name.
String	getTypeString(boolean qualified)	Returns the type of this field, as determined from its field descriptor.
boolean	isConstant()	Returns whether this field is a constant.
static FieldInfo	read(ClassFile cf, DataInputStream in)	Reads a FieldInfo structure from the specified input stream.
private AttributeInfo	readAttribute(DataInputStream in)	Reads an attribute for this field from an input stream.

Methods inherited from class org.fife.rsta.ac.java.classreader.MemberInfo

getAccessFlags, getClassFile, isDeprecated, isFinal, isStatic, readAttribute

Methods inherited from class java.lang.Object

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

Field Details

nameIndex

private int nameIndex

Index into the constant pool of a ConstantUtf8Info structure representing the field name, as a simple name.

descriptorIndex

private int descriptorIndex

Index into the constant pool of a ConstantUtf8Info structure representing a valid field descriptor.

attributes

private List<AttributeInfo> attributes

An array of attributes of this field.

CONSTANT_VALUE

public static final String CONSTANT_VALUE

See Also:

• Constant Field Values

Constructor Details

FieldInfo

public FieldInfo(ClassFile cf,
 int accessFlags,
 int nameIndex,
 int descriptorIndex)

Constructor.

Parameters:

cf - The class file being parsed.

accessFlags - The access flags.

nameIndex - The name index.

descriptorIndex - The descriptor index.

See Also:

• AccessFlags

Method Details

addAttribute

public void addAttribute(AttributeInfo info)

Adds the specified attribute to this field.

Parameters:

info - Information about the attribute.

getAttribute

public AttributeInfo getAttribute(int index)

Returns the specified attribute.

Parameters:

index - The index of the attribute.

Returns:

The attribute.

getAttributeCount

public int getAttributeCount()

Returns the number of attributes of this field.

Returns:

The number of attributes.

getConstantValueAsString

public String getConstantValueAsString()

Returns this constant value as a string.

Returns:

A string representation of this constant value, or null if it isn't one.

getConstantValueAttributeInfo

private ConstantValue getConstantValueAttributeInfo()

Returns the ConstantValue attribute info for this field, if any.

Returns:

The ConstantValue attribute, or null if there isn't one.

getDescriptor

public String getDescriptor()

Returns the field descriptor of this field.

Specified by:

getDescriptor in class MemberInfo

Returns:

The field descriptor of this field.

getName

public String getName()

Description copied from class: MemberInfo

Returns the name of this member.

Specified by:

getName in class MemberInfo

Returns:

The name of this member.

getNameIndex

public int getNameIndex()

Returns the index into the constant pool of a ConstantUtf8Info structure representing the field name, as a simple name.

Returns:

The index into the constant pool.

getTypeString

public String getTypeString(boolean qualified)

Returns the type of this field, as determined from its field descriptor.

Parameters:

qualified - Whether the returned value should be fully-qualified.

Returns:

The type of this field.

isConstant

public boolean isConstant()

Returns whether this field is a constant.

Returns:

Whether this field is a constant.

read

public static FieldInfo read(ClassFile cf,
 DataInputStream in)
                      throws IOException

Reads a FieldInfo structure from the specified input stream.

Parameters:

cf - The class file containing this field.

in - The input stream to read from.

Returns:

The field information read.

Throws:

IOException - If an IO error occurs.

readAttribute

private AttributeInfo readAttribute(DataInputStream in)
                             throws IOException

Reads an attribute for this field from an input stream.

Parameters:

in - The input stream to read from.

Returns:

The attribute read, possibly null if it was known to be unimportant for our purposes.

Throws:

IOException - If an IO error occurs.