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org.apache.axis.utils.bytecode
Class ParamReader  

java.lang.Object
  java.io.InputStream
      java.io.ByteArrayInputStream
          org.apache.axis.utils.bytecode.ClassReader
              org.apache.axis.utils.bytecode.ParamReader

All Implemented Interfaces:

java.io.Closeable

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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.

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Nested Class Summary
private static class	ParamReader.MethodInfo

 

Nested classes inherited from class org.apache.axis.utils.bytecode.ClassReader

 

Field Summary
private  java.lang.String	methodName
private  java.util.Map	methods
private  java.lang.Class[]	paramTypes

 

Fields inherited from class org.apache.axis.utils.bytecode.ClassReader

 

Fields inherited from class java.io.ByteArrayInputStream

buf, count, mark, pos

 

Constructor Summary

ParamReader(byte[] b)           process the given class bytes directly.

ParamReader(java.lang.Class c)           process a class file, given it's class.

 

Method Summary
private  ParamReader.MethodInfo	getMethodInfo()
java.lang.String[]	getParameterNames(java.lang.reflect.Constructor ctor)           return 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)           return the names of the declared parameters for the given method.
void	readCode()           read a code attribute
void	readLocalVariableTable()           this is invoked when a LocalVariableTable attribute is encountered.

 

Methods inherited from class org.apache.axis.utils.bytecode.ClassReader

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

 

Methods inherited from class java.io.ByteArrayInputStream

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

 

Methods inherited from class java.io.InputStream

close, read

 

Methods inherited from class java.lang.Object

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

 

Field Detail

methodName

private java.lang.String methodName

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methods

private java.util.Map methods

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paramTypes

private java.lang.Class[] paramTypes

Constructor Detail

ParamReader

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

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

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ParamReader

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

process the given class bytes directly.

Method Detail

readCode

public void readCode()
              throws java.io.IOException

Description copied from class: ClassReader

read a code attribute

Overrides:

readCode in class ClassReader

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getParameterNames

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

return 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().

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getParameterNames

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

return 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().

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getParameterNames

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

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getMethodInfo

private ParamReader.MethodInfo getMethodInfo()

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readLocalVariableTable

public void readLocalVariableTable()
                            throws java.io.IOException

this is invoked when a LocalVariableTable attribute is encountered.

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Overview  Package   Class  Use  Deprecated  Index
Home >> All >> org >> apache >> axis >> utils >> [ bytecode overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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