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java.lang.Object org.apache.tools.ant.taskdefs.optional.depend.constantpool.ConstantPoolEntry
public abstract class ConstantPoolEntry
An entry in the constant pool. This class contains a representation of the constant pool entries. It is an abstract base class for all the different forms of constant pool entry.
ConstantPool
Field Summary | |
---|---|
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 Summary | |
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ConstantPoolEntry(int tagValue,
int entries)
Initialise the constant pool entry. |
Method Summary | |
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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. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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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
Constructor Detail |
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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.Method Detail |
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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()
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