de.javagl.reflection

Class Classes

java.lang.Object

de.javagl.reflection.Classes

public class Classes
extends Object

Utility methods related to classes.

Method Summary

Modifier and Type	Method and Description
static Class<?>	forNameOptional(String className) Returns the class for the given name.
static Class<?>	forNameUnchecked(String className) Returns the class for the given name.
static Object	newInstanceNonAccessibleOptional(Class<?> c) Return a new instance of the given class.
static Object	newInstanceNonAccessibleOptional(String className) Return a new instance of the type described by the given class name.
static Object	newInstanceNonAccessibleUnchecked(Class<?> c) Return a new instance of the given class.
static Object	newInstanceNonAccessibleUnchecked(String className) Return a new instance of the type described by the given class name.
static Object	newInstanceOptional(Class<?> c) Return a new instance of the given class.
static Object	newInstanceOptional(String className) Return a new instance of the type described by the given class name.
static Object	newInstanceUnchecked(Class<?> c) Return a new instance of the given class.
static Object	newInstanceUnchecked(String className) Return a new instance of the type described by the given class name.

Methods inherited from class java.lang.Object

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

Method Detail

forNameUnchecked

public static Class<?> forNameUnchecked(String className)

Returns the class for the given name. The name must be a fully qualified class name.

This call is wrapping all possible checked exceptions and initialization exceptions into a ReflectionException

Parameters:

className - The class name

Returns:

The class for the given name

Throws:

ReflectionException - If the type for the given name can not be found

forNameOptional

public static Class<?> forNameOptional(String className)

Returns the class for the given name. The name must be a fully qualified class name.

Returns null if the underlying call did not succeed.

Parameters:

className - The class name

Returns:

The class for the given name, or null if no such class could be found

newInstanceUnchecked

public static Object newInstanceUnchecked(String className)

Return a new instance of the type described by the given class name. The name must be a fully qualified class name. The class must have a parameterless constructor.

This call is wrapping all possible checked exceptions and initialization exceptions into a ReflectionException

Parameters:

className - The fully qualified class name

Returns:

A new instance of the class described by the given name

Throws:

ReflectionException - If the type for the given name can not be found or not be instantiated.

newInstanceOptional

public static Object newInstanceOptional(String className)

Return a new instance of the type described by the given class name. The name must be a fully qualified class name. The class must have a parameterless constructor.

Returns null if the underlying call did not succeed.

Parameters:

className - The fully qualified class name

Returns:

A new instance of the class described by the given name

newInstanceUnchecked

public static Object newInstanceUnchecked(Class<?> c)

Return a new instance of the given class. The class must have a parameterless constructor.

This call is wrapping all possible checked exceptions and initialization exceptions into a ReflectionException

Parameters:

c - The class

Returns:

A new instance of the class

Throws:

ReflectionException - If the instance could not be created, for example, because it is an abstract class or interface, or has no public default constructor

newInstanceOptional

public static Object newInstanceOptional(Class<?> c)

Return a new instance of the given class. The class must have a parameterless constructor.

Returns null if the underlying call did not succeed.

Parameters:

c - The class

Returns:

A new instance of the class

newInstanceNonAccessibleUnchecked

public static Object newInstanceNonAccessibleUnchecked(String className)

Return a new instance of the type described by the given class name. The name must be a fully qualified class name, and the respective class must have a parameterless constructor. If the constructor is not accessible, it will be made accessible for this call.

This call is wrapping all possible checked exceptions and initialization exceptions into a ReflectionException

Parameters:

className - The fully qualified class name

Returns:

A new instance of the class described by the given name

Throws:

ReflectionException - If the type for the given name can not be found or not be instantiated.

newInstanceNonAccessibleOptional

public static Object newInstanceNonAccessibleOptional(String className)

Return a new instance of the type described by the given class name. The name must be a fully qualified class name, and the respective class must have a parameterless constructor. If the constructor is not accessible, it will be made accessible for this call.

Returns null if the underlying call did not succeed.

Parameters:

className - The fully qualified class name

Returns:

A new instance of the class described by the given name

newInstanceNonAccessibleUnchecked

public static Object newInstanceNonAccessibleUnchecked(Class<?> c)

Return a new instance of the given class. The class must have a parameterless constructor. If the constructor is not accessible, it will be made accessible for this call.

This call is wrapping all possible checked exceptions and initialization exceptions into a ReflectionException

Parameters:

c - The class

Returns:

A new instance of the class

Throws:

ReflectionException - If the instance could not be created, for example, because it is an abstract class or interface, or has no parameterless constructor

newInstanceNonAccessibleOptional

public static Object newInstanceNonAccessibleOptional(Class<?> c)

Return a new instance of the given class. The class must have a parameterless constructor. If the constructor is not accessible, it will be made accessible for this call.

Returns null if the underlying call did not succeed.

Parameters:

c - The class

Returns:

A new instance of the class