org.apache.bytecode

类 ParamReader

java.lang.Object

java.io.InputStream

java.io.ByteArrayInputStream

org.apache.bytecode.ClassReader

org.apache.bytecode.ParamReader

所有已实现的接口:

java.io.Closeable, java.lang.AutoCloseable

public class ParamReader
extends ClassReader

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.

字段概要

从类继承的字段 java.io.ByteArrayInputStream

buf, count, mark, pos

构造器概要

构造器

构造器和说明
ParamReader(byte[] b) Processes the given class bytes directly.
ParamReader(java.lang.Class c) Processes a class file, given it's class.

方法概要

限定符和类型	方法和说明
java.lang.String[]	getParameterNames(java.lang.reflect.Constructor ctor) Returns the names of the declared parameters for the given constructor.
protected java.lang.String[]	getParameterNames(java.lang.reflect.Member member, java.lang.Class[] paramTypes)
java.lang.String[]	getParameterNames(java.lang.reflect.Method method) Returns the names of the declared parameters for the given method.
void	readCode() Reads a code attribute.
void	readLocalVariableTable() This is invoked when a LocalVariableTable attribute is encountered.
void	readMethodParameters() Reads a MethodParameters attribute.

从类继承的方法 org.apache.bytecode.ClassReader

findAttributeReaders, getBytes, getSignature, readAttributes, readCpool, readInt, readShort, resolveClass, resolveField, resolveMethod, resolveNameAndType, resolveUtf8, skipAttributes, skipFully

从类继承的方法 java.io.ByteArrayInputStream

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

从类继承的方法 java.io.InputStream

read

从类继承的方法 java.lang.Object

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

构造器详细资料

ParamReader

public ParamReader(java.lang.Class c)
            throws java.io.IOException

Processes a class file, given it's class. We'll use the defining classloader to locate the bytecode.

参数:

c -

抛出:

java.io.IOException

ParamReader

public ParamReader(byte[] b)
            throws java.io.IOException

Processes the given class bytes directly.

参数:

b -

抛出:

java.io.IOException

方法详细资料

readCode

public void readCode()
              throws java.io.IOException

从类复制的说明: ClassReader

Reads a code attribute.

覆盖:

readCode 在类中 ClassReader

抛出:

java.io.IOException

readMethodParameters

public void readMethodParameters()
                          throws java.io.IOException

Reads a MethodParameters attribute.

抛出:

java.io.IOException

getParameterNames

public java.lang.String[] getParameterNames(java.lang.reflect.Constructor ctor)

Returns the names of the declared parameters for the given constructor. If we cannot determine the names, return null. The returned array will have one name per parameter. The length of the array will be the same as the length of the Class[] array returned by Constructor.getParameterTypes().

参数:

ctor -

返回:

Returns String[] array of names, one per parameter, or null

getParameterNames

public java.lang.String[] getParameterNames(java.lang.reflect.Method method)

Returns the names of the declared parameters for the given method. If we cannot determine the names, return null. The returned array will have one name per parameter. The length of the array will be the same as the length of the Class[] array returned by Method.getParameterTypes().

参数:

method -

返回:

Returns String[] array of names, one per parameter, or null

getParameterNames

protected java.lang.String[] getParameterNames(java.lang.reflect.Member member,
                                               java.lang.Class[] paramTypes)

readLocalVariableTable

public void readLocalVariableTable()
                            throws java.io.IOException

This is invoked when a LocalVariableTable attribute is encountered.

抛出:

java.io.IOException