Package com.github.toolarium.common.util

Class ClassInstanceUtil

java.lang.Object

com.github.toolarium.common.util.ClassInstanceUtil

public final class ClassInstanceUtil
extends Object

Method Summary

Modifier and Type	Method	Description
<T> T[]	createArray(Class<T> theClass, int length)	Load a class by given name
<T> Class<T>	getClassObject(String className)	Load a class by given name
static ClassInstanceUtil	getInstance()	Get the instance
boolean	implementsInterface(String className, Class<?> interfaceClazz)	Check if a given class implements an interface
boolean	isClassAvailable(String className)	Check if the given class exists
<T> T	newInstance(Class<T> clazz)	Create a new instance of a given class
<T> T	newInstance(String className)	Create a new instance of a given class

Methods inherited from class java.lang.Object

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

Method Details

getInstance

public static ClassInstanceUtil getInstance()

Get the instance

Returns:

the instance

getClassObject

public <T> Class<T> getClassObject(String className)
                            throws ClassNotFoundException

Load a class by given name

Type Parameters:

T - the generic type

Parameters:

className - the name of the class

Returns:

the loaded class

Throws:

ClassNotFoundException - in case of error

newInstance

public <T> T newInstance(String className)
                  throws ClassNotFoundException,
InstantiationException,
IllegalAccessException,
SecurityException

Create a new instance of a given class

Type Parameters:

T - the generic type

Parameters:

className - the name of the class

Returns:

the loaded class

Throws:

ClassNotFoundException - in case of error

InstantiationException - in case of error

IllegalAccessException - in case of error

SecurityException - in case of error

newInstance

public <T> T newInstance(Class<T> clazz)
                  throws SecurityException,
InstantiationException,
IllegalAccessException

Create a new instance of a given class

Type Parameters:

T - the generic type

Parameters:

clazz - the class

Returns:

the instance

Throws:

SecurityException - in case of error

InvocationTargetException - in case of error

IllegalArgumentException - in case of error

IllegalAccessException - in case of error

InstantiationException - in case of error

createArray

public <T> T[] createArray(Class<T> theClass,
 int length)

Load a class by given name

Type Parameters:

T - the generic type

Parameters:

theClass - the class

length - the length of the array

Returns:

the loaded class

Throws:

IllegalArgumentException - In case of invalid input

isClassAvailable

public boolean isClassAvailable(String className)

Check if the given class exists

Parameters:

className - the name of the class to check

Returns:

true if the class exists; otherwise false

implementsInterface

public boolean implementsInterface(String className,
 Class<?> interfaceClazz)

Check if a given class implements an interface

Parameters:

className - the class name

interfaceClazz - the interface

Returns:

true if the class implements the interface