org.apache.axis.utils.bytecode

クラス ClassReader

java.lang.Object

java.io.InputStream

java.io.ByteArrayInputStream

org.apache.axis.utils.bytecode.ClassReader

すべての実装されたインタフェース:

Closeable, AutoCloseable

public class ClassReader
extends ByteArrayInputStream

This is the class file reader for obtaining the parameter names for declared methods in a class. The class must have debugging attributes for us to obtain this information.

This does not work for inherited methods. To obtain parameter names for inherited methods, you must use a paramReader for the class that originally declared the method.

don't get tricky, it's the bare minimum. Instances of this class are not threadsafe -- don't share them.

作成者:

Edwin Smith, Macromedia

フィールドのサマリー

クラスから継承されたフィールド java.io.ByteArrayInputStream

buf, count, mark, pos

コンストラクタのサマリー

コンストラクタ

修飾子	コンストラクタと説明
protected	ClassReader(byte[] buf, Map attrMethods)

メソッドのサマリー

修飾子とタイプ	メソッドと説明
protected static Map	findAttributeReaders(Class c)
protected static byte[]	getBytes(Class c) load the bytecode for a given class, by using the class's defining classloader and assuming that for a class named P.C, the bytecodes are in a resource named /P/C.class.
protected static String	getSignature(Member method, Class[] paramTypes)
protected void	readAttributes() read an attributes array.
void	readCode() read a code attribute
protected void	readCpool()
protected int	readInt()
protected int	readShort()
protected Class	resolveClass(int i)
protected Field	resolveField(int i)
protected Member	resolveMethod(int index)
protected org.apache.axis.utils.bytecode.ClassReader.NameAndType	resolveNameAndType(int i)
protected String	resolveUtf8(int i)
protected void	skipAttributes()
protected void	skipFully(int n) skip n bytes in the input stream.

クラスから継承されたメソッド java.io.ByteArrayInputStream

available, close, mark, markSupported, read, read, reset, skip

クラスから継承されたメソッド java.io.InputStream

read

クラスから継承されたメソッド java.lang.Object

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

コンストラクタの詳細

ClassReader

protected ClassReader(byte[] buf,
                      Map attrMethods)

メソッドの詳細

getBytes

protected static byte[] getBytes(Class c)
                          throws IOException

load the bytecode for a given class, by using the class's defining classloader and assuming that for a class named P.C, the bytecodes are in a resource named /P/C.class.

パラメータ:

c - the class of interest

戻り値:

a byte array containing the bytecode

例外:

IOException

findAttributeReaders

protected static Map findAttributeReaders(Class c)

getSignature

protected static String getSignature(Member method,
                                     Class[] paramTypes)

readShort

protected final int readShort()

戻り値:

the next unsigned 16 bit value

readInt

protected final int readInt()

戻り値:

the next signed 32 bit value

skipFully

protected void skipFully(int n)
                  throws IOException

skip n bytes in the input stream.

例外:

IOException

resolveMethod

protected final Member resolveMethod(int index)
                              throws IOException,
                                     ClassNotFoundException,
                                     NoSuchMethodException

例外:

IOException

ClassNotFoundException

NoSuchMethodException

resolveField

protected final Field resolveField(int i)
                            throws IOException,
                                   ClassNotFoundException,
                                   NoSuchFieldException

例外:

IOException

ClassNotFoundException

NoSuchFieldException

resolveNameAndType

protected final org.apache.axis.utils.bytecode.ClassReader.NameAndType resolveNameAndType(int i)
                                                                                   throws IOException

例外:

IOException

resolveClass

protected final Class resolveClass(int i)
                            throws IOException,
                                   ClassNotFoundException

例外:

IOException

ClassNotFoundException

resolveUtf8

protected final String resolveUtf8(int i)
                            throws IOException

例外:

IOException

readCpool

protected final void readCpool()
                        throws IOException

例外:

IOException

skipAttributes

protected final void skipAttributes()
                             throws IOException

例外:

IOException

readAttributes

protected final void readAttributes()
                             throws IOException

read an attributes array. the elements of a class file that can contain attributes are: fields, methods, the class itself, and some other types of attributes.

例外:

IOException

readCode

public void readCode()
              throws IOException

read a code attribute

例外:

IOException