public abstract class ConstantPoolEntry
extends java.lang.Object
ConstantPool
Modifier and Type | Field and Description |
---|---|
static int |
CONSTANT_CLASS
Tag value for Class entries.
|
static int |
CONSTANT_DOUBLE
Tag value for Double entries.
|
static int |
CONSTANT_FIELDREF
Tag value for Field Reference entries.
|
static int |
CONSTANT_FLOAT
Tag value for Float entries.
|
static int |
CONSTANT_INTEGER
Tag value for Integer entries.
|
static int |
CONSTANT_INTERFACEMETHODREF
Tag value for Interface Method Reference entries.
|
static int |
CONSTANT_LONG
Tag value for Long entries.
|
static int |
CONSTANT_METHODREF
Tag value for Method Reference entries.
|
static int |
CONSTANT_NAMEANDTYPE
Tag value for Name and Type entries.
|
static int |
CONSTANT_STRING
Tag value for String entries.
|
static int |
CONSTANT_UTF8
Tag value for UTF8 entries.
|
Constructor and Description |
---|
ConstantPoolEntry(int tagValue,
int entries)
Initialise the constant pool entry.
|
Modifier and Type | Method and Description |
---|---|
int |
getNumEntries()
Get the number of Constant Pool Entry slots within the constant pool
occupied by this entry.
|
int |
getTag()
Get the Entry's type tag.
|
boolean |
isResolved()
Indicates whether this entry has been resolved.
|
abstract void |
read(java.io.DataInputStream cpStream)
read a constant pool entry from a class stream.
|
static ConstantPoolEntry |
readEntry(java.io.DataInputStream cpStream)
Read a constant pool entry from a stream.
|
void |
resolve(ConstantPool constantPool)
Resolve this constant pool entry with respect to its dependents in
the constant pool.
|
public static final int CONSTANT_UTF8
public static final int CONSTANT_INTEGER
public static final int CONSTANT_FLOAT
public static final int CONSTANT_LONG
public static final int CONSTANT_DOUBLE
public static final int CONSTANT_CLASS
public static final int CONSTANT_STRING
public static final int CONSTANT_FIELDREF
public static final int CONSTANT_METHODREF
public static final int CONSTANT_INTERFACEMETHODREF
public static final int CONSTANT_NAMEANDTYPE
public ConstantPoolEntry(int tagValue, int entries)
tagValue
- the tag value which identifies which type of constant
pool entry this is.entries
- the number of constant pool entry slots this entry
occupies.public static ConstantPoolEntry readEntry(java.io.DataInputStream cpStream) throws java.io.IOException
cpStream
- the stream from which the constant pool entry is to
be read.java.io.IOException
- if the constant pool entry cannot be read
from the streampublic boolean isResolved()
public void resolve(ConstantPool constantPool)
constantPool
- the constant pool of which this entry is a member
and against which this entry is to be resolved.public abstract void read(java.io.DataInputStream cpStream) throws java.io.IOException
cpStream
- the DataInputStream which contains the constant pool
entry to be read.java.io.IOException
- if there is a problem reading the entry from
the stream.public int getTag()
public final int getNumEntries()