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java.lang.Objectjava.io.InputStream
java.io.ByteArrayInputStream
org.apache.cxf.common.util.ClassReader
org.apache.cxf.common.util.ParamReader
public class ParamReader
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.
| Field Summary |
|---|
| Fields inherited from class java.io.ByteArrayInputStream |
|---|
buf, count, mark, pos |
| Constructor Summary | |
|---|---|
ParamReader(byte[] b)
process the given class bytes directly. |
|
ParamReader(Class<?> c)
process a class file, given it's class. |
|
| Method Summary | |
|---|---|
String[] |
getParameterNames(Constructor<?> ctor)
return the names of the declared parameters for the given constructor. |
protected String[] |
getParameterNames(Member member,
Class<?>[] pTypes)
|
String[] |
getParameterNames(Method method)
return the names of the declared parameters for the given method. |
static String[] |
getParameterNamesFromDebugInfo(Method method)
Retrieve a list of function parameter names from a method Returns null if unable to read parameter names (i.e. |
void |
readCode()
read a code attribute |
void |
readLocalVariableTable()
this is invoked when a LocalVariableTable attribute is encountered. |
| Methods inherited from class org.apache.cxf.common.util.ClassReader |
|---|
findAttributeReaders, getBytes, getSignature, readAttributes, readCpool, readInt, readShort, resolveClass, resolveField, resolveMethod, resolveNameAndType, resolveUtf8, skipAttributes, skipFully |
| Methods inherited from class java.io.ByteArrayInputStream |
|---|
available, close, mark, markSupported, read, read, reset, skip |
| Methods inherited from class java.io.InputStream |
|---|
read |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
|---|
public ParamReader(Class<?> c)
throws IOException
c -
IOException
public ParamReader(byte[] b)
throws IOException
b -
IOException| Method Detail |
|---|
public static String[] getParameterNamesFromDebugInfo(Method method)
public void readCode()
throws IOException
ClassReader
readCode in class ClassReaderIOExceptionpublic String[] getParameterNames(Constructor<?> ctor)
ctor -
public String[] getParameterNames(Method method)
method -
protected String[] getParameterNames(Member member,
Class<?>[] pTypes)
public void readLocalVariableTable()
throws IOException
IOException
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