at.dms.classfile
Class Attribute
java.lang.Object
|
+--at.dms.classfile.Attribute
- Direct Known Subclasses:
- CodeInfo, ConstantValueAttribute, DeprecatedAttribute, ExceptionsAttribute, GenericAttribute, InnerClassTable, LineNumberTable, LocalVariableTable, SourceFileAttribute, SyntheticAttribute
- public abstract class Attribute
- extends java.lang.Object
This is the root class of every attribute
Method Summary |
(package private) abstract int |
getSize()
Returns the space in bytes used by this attribute in the classfile |
(package private) abstract int |
getTag()
Returns the attribute's tag |
static Attribute |
read(java.io.DataInput in,
ConstantPool cp)
Constructs an attribute from a class file stream |
static Attribute |
readCodeInfoAttribute(java.io.DataInput in,
ConstantPool cp,
Instruction[] insns)
Constructs an sub-attribute of CodeInfo from a class file stream |
static Attribute |
readInterfaceOnly(java.io.DataInput in,
ConstantPool cp)
Constructs an attribute from a class file stream |
(package private) abstract void |
resolveConstants(ConstantPool cp)
Insert or check location of constant value on constant pool |
(package private) abstract void |
write(ConstantPool cp,
java.io.DataOutput out)
Write this class into the the file (out) getting data position from
the constant pool |
Methods inherited from class java.lang.Object |
, clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
EMPTY
public static final Attribute[] EMPTY
Attribute
public Attribute()
read
public static Attribute read(java.io.DataInput in,
ConstantPool cp)
throws java.io.IOException,
ClassFileFormatException
- Constructs an attribute from a class file stream
- Parameters:
in
- the stream to read fromcp
- the constant pool- Throws:
java.io.IOException
- an io problem has occuredClassFileFormatException
- attempt to
write a bad classfile info
readInterfaceOnly
public static Attribute readInterfaceOnly(java.io.DataInput in,
ConstantPool cp)
throws java.io.IOException,
ClassFileFormatException
- Constructs an attribute from a class file stream
- Parameters:
in
- the stream to read fromcp
- the constant pool- Throws:
java.io.IOException
- an io problem has occuredClassFileFormatException
- attempt to
write a bad classfile info
readCodeInfoAttribute
public static Attribute readCodeInfoAttribute(java.io.DataInput in,
ConstantPool cp,
Instruction[] insns)
throws java.io.IOException,
ClassFileFormatException
- Constructs an sub-attribute of CodeInfo from a class file stream
- Parameters:
in
- the stream to read fromcp
- the constant poolinsns
- (sparse) array of instructions- Throws:
java.io.IOException
- an io problem has occuredClassFileFormatException
- attempt to
write a bad classfile info
getTag
abstract int getTag()
- Returns the attribute's tag
getSize
abstract int getSize()
- Returns the space in bytes used by this attribute in the classfile
resolveConstants
abstract void resolveConstants(ConstantPool cp)
throws ClassFileFormatException
- Insert or check location of constant value on constant pool
- Parameters:
cp
- the constant pool for this class
write
abstract void write(ConstantPool cp,
java.io.DataOutput out)
throws java.io.IOException,
ClassFileFormatException
- Write this class into the the file (out) getting data position from
the constant pool
- Parameters:
cp
- the constant pool that contain all dataout
- the file where to write this object info- Throws:
java.io.IOException
- an io problem has occuredClassFileFormatException
- attempt to
write a bad classfile info