edu.wisc.cs.java
Class FieldInfo
java.lang.Object
|
+--edu.wisc.cs.java.Accessible
|
+--edu.wisc.cs.java.FieldInfo
- public class FieldInfo
- extends Accessible
This object maintains a Field_Info table, as specified by the Java Virtual
Machine specification for class files.
Field Summary |
protected AttributeInfo[] |
attributes
An array of sttributes for this field. |
protected ConstantPool |
cpool
The constant pool to which this FieldInfo refers. |
protected int |
descriptor_index
The index in the constant pool of the descriptor (type) of this field. |
protected int |
name_index
The index in the constant pool of the name of this field. |
Fields inherited from class edu.wisc.cs.java.Accessible |
ACC_ABSTRACT,
ACC_FINAL,
ACC_INTERFACE,
ACC_NATIVE,
ACC_PRIVATE,
ACC_PROTECTED,
ACC_PUBLIC,
ACC_STATIC,
ACC_SUPER,
ACC_SYNCHRONIZED,
ACC_TRANSIENT,
ACC_VOLATILE,
access_flags |
Constructor Summary |
FieldInfo(ConstantPool cp,
int access,
java.lang.String name,
java.lang.String desc)
Constructs a new field with the specified access flags, name, and type. |
FieldInfo(java.io.DataInputStream in,
ConstantPool cp)
Construct a new FieldInfo object, reading data from the specified stream. |
Method Summary |
int |
getDescriptor()
Returns the index of the descriptor of this field in the constant pool. |
int |
getName()
Returns the index of the name of this field in the constant pool. |
void |
writeTo(java.io.DataOutputStream out)
Writes a field to the specified stream. |
Methods inherited from class java.lang.Object |
clone,
equals,
finalize,
getClass,
hashCode,
notify,
notifyAll,
toString,
wait,
wait,
wait |
cpool
protected ConstantPool cpool
- The constant pool to which this FieldInfo refers.
name_index
protected int name_index
- The index in the constant pool of the name of this field.
descriptor_index
protected int descriptor_index
- The index in the constant pool of the descriptor (type) of this field.
attributes
protected AttributeInfo[] attributes
- An array of sttributes for this field.
FieldInfo
public FieldInfo(java.io.DataInputStream in,
ConstantPool cp)
throws java.io.IOException
- Construct a new FieldInfo object, reading data from the specified stream.
- Parameters:
in
- the stream from which to read the data.cp
- the constant pool to which indeces refer.- Throws:
- java.io.IOException - if there is a problem reading from the stream.
FieldInfo
public FieldInfo(ConstantPool cp,
int access,
java.lang.String name,
java.lang.String desc)
- Constructs a new field with the specified access flags, name, and type.
The ConstantPool is expected to be the constant pool for the class which
the new field will be a member of. Note that this constructor will modify
this constant pool if necessary.
- Parameters:
cp
- the constant pool for the class of which this field is a member.access
- the access flags for the field.name
- the name of the field.desc
- the type for this field.- See Also:
Accessible
getName
public int getName()
- Returns the index of the name of this field in the constant pool.
- Returns:
- the index of the name of this field in the constant pool.
getDescriptor
public int getDescriptor()
- Returns the index of the descriptor of this field in the constant pool.
- Returns:
- the index of the descriptor of this field in the constant pool.
writeTo
public void writeTo(java.io.DataOutputStream out)
throws java.io.IOException
- Writes a field to the specified stream. The format of the data written is
the format required by the Java Virtual Machine specification.
- Parameters:
out
- the destination stream to write data to.- Throws:
- java.io.IOException - if there is a problem writing the field data.