com.acciente.induction.util
Class ReflectUtils

java.lang.Object
  com.acciente.induction.util.ReflectUtils

public class ReflectUtils
extends Object

Internal. Some useful reflection methods. (It is not convincing enough at this time that these methods are general enough to be promoted to the com.acciente.reflect package)

Author:

Adinath Raveendra Raj

Constructor Summary

ReflectUtils()

Method Summary

static Constructor	getNoArgConstructor(Class oClass) This method introspects into the specified class and checks if the class has a public constructor with formal parameters (i.e.
static Constructor	getSingletonConstructor(Class oClass) This method introspects into the specified class and checks if the class has only one public constructor.
static Method	getSingletonMethod(Class oClass, String sMethodName) This method introspects into the specified class and checks if the class has only one public method with the specified name.
static Method	getSingletonMethod(Class oClass, String sMethodName, boolean bIgnoreCase) This method introspects into the specified class and checks if the class has only one public method with the specified name.

Methods inherited from class java.lang.Object

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

Constructor Detail

ReflectUtils

public ReflectUtils()

Method Detail

getSingletonConstructor

public static Constructor getSingletonConstructor(Class oClass)
                                           throws ConstructorNotFoundException

This method introspects into the specified class and checks if the class has only one public constructor. If one one constructor is found it is returned otherwise an exception is thrown.

Parameters:

oClass - the class to introspect into

Returns:

the single public constructor

Throws:

ConstructorNotFoundException - if there are no public constructors or if there is more than one public constructor

getNoArgConstructor

public static Constructor getNoArgConstructor(Class oClass)
                                       throws ConstructorNotFoundException

This method introspects into the specified class and checks if the class has a public constructor with formal parameters (i.e. a no-arg constructor). If found it is returned otherwise an exception is thrown.

Parameters:

oClass - the class to introspect into

Returns:

the no-arg constructor

Throws:

ConstructorNotFoundException - if there are no no-arg constructors

getSingletonMethod

public static Method getSingletonMethod(Class oClass,
                                        String sMethodName)
                                 throws MethodNotFoundException

This method introspects into the specified class and checks if the class has only one public method with the specified name. If one one method is found it is returned otherwise an IllegalArgumentException is thrown.

Parameters:

oClass - the class to introspect into

sMethodName - the name of the method (case-sensitive)

Returns:

the single public method found

Throws:

MethodNotFoundException - if there are no public methods with the specified name or if there is more than one public method with the specified name

getSingletonMethod

public static Method getSingletonMethod(Class oClass,
                                        String sMethodName,
                                        boolean bIgnoreCase)
                                 throws MethodNotFoundException

This method introspects into the specified class and checks if the class has only one public method with the specified name. If one one method is found it is returned otherwise an IllegalArgumentException is thrown.

Parameters:

oClass - the class to introspect into

sMethodName - the name of the method

bIgnoreCase - true if the method search should be case-sensitive

Returns:

the single public method found

Throws:

MethodNotFoundException - if there are no public methods with the specified name or if there is more than one public method with the specified name