Package com.intergral.deep.reflect

Class ReflectionImpl

java.lang.Object

com.intergral.deep.reflect.ReflectionImpl

All Implemented Interfaces:

IReflection

Direct Known Subclasses:

Java9ReflectionImpl

public class ReflectionImpl
extends Object
implements IReflection

The version of reflection used before modules where added.

Constructor Summary

Constructors

Constructor	Description
ReflectionImpl()

Method Summary

Modifier and Type	Method	Description
<T> T	callConstructor(Constructor<?> constructor, Object... args)	Call a constructor with the arguments.
<T> T	callField(Object target, Field field)	Call a field on a target.
<T> T	callMethod(Object target, String methodName, Object... args)	Call a method on the target object.
Constructor<?>	findConstructor(Class<?> clazz, Class<?>... args)	Find a constructor on the given class.
Method	findMethod(Class<?> originalClazz, String methodName, Class<?>... argTypes)	Scan the hierarchy of the input class for a method with the given name.
Field	getField(Object obj, String fieldName)	Get a filed from the target.
Iterator<Field>	getFieldIterator(Class<?> clazz)	Get an iterator that will iterator over all the available fields on the given class.
<T> T	getFieldValue(Object target, String fieldName)	Get a field from an object.
Set<String>	getModifiers(Field field)	Get the modifier names of a field.
boolean	setAccessible(Class<?> clazz, Constructor<?> constructor)	Set the constructor as accessible.
boolean	setAccessible(Class<?> clazz, Field field)	Set the field as accessible.
boolean	setAccessible(Class<?> clazz, Method method)	Set the method as accessible.

Methods inherited from class java.lang.Object

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

Constructor Detail

ReflectionImpl

public ReflectionImpl()

Method Detail

setAccessible

public boolean setAccessible(Class<?> clazz,
                             Field field)

Description copied from interface: IReflection

Set the field as accessible.

Specified by:

setAccessible in interface IReflection

Parameters:

clazz - the clazz the field is on

field - the field to access

Returns:

could we complete the operation

See Also:

Field.setAccessible(boolean)

setAccessible

public boolean setAccessible(Class<?> clazz,
                             Method method)

Description copied from interface: IReflection

Set the method as accessible.

Specified by:

setAccessible in interface IReflection

Parameters:

clazz - the clazz the field is on

method - the method to access

Returns:

could we complete the operation

See Also:

Method.setAccessible(boolean)

setAccessible

public boolean setAccessible(Class<?> clazz,
                             Constructor<?> constructor)

Description copied from interface: IReflection

Set the constructor as accessible.

Specified by:

setAccessible in interface IReflection

Parameters:

clazz - the clazz the field is on

constructor - the constructor to set

Returns:

could we complete the operation

See Also:

Constructor.setAccessible(boolean)

callMethod

public <T> T callMethod(Object target,
                        String methodName,
                        Object... args)

Description copied from interface: IReflection

Call a method on the target object.

This will look for the method using IReflection.findMethod(Class, String, Class[]) using the input arguments as the argument types of the method. The method will then be invoked on the target argument.

Specified by:

callMethod in interface IReflection

Type Parameters:

T - the type of the response

Parameters:

target - the target instance to call the method on

methodName - the name of the method to call

args - the arguments to the method

Returns:

the response of the method

findMethod

public Method findMethod(Class<?> originalClazz,
                         String methodName,
                         Class<?>... argTypes)

Description copied from interface: IReflection

Scan the hierarchy of the input class for a method with the given name. This will scan declared methods and methods, as well as stepping up the super class.

Specified by:

findMethod in interface IReflection

Parameters:

originalClazz - the class to start the scan on

methodName - the name of the method to look for

argTypes - the argument types in the method signature

Returns:

the discovered method or null

getField

public Field getField(Object obj,
                      String fieldName)

Description copied from interface: IReflection

Get a filed from the target.

Specified by:

getField in interface IReflection

Parameters:

obj - the target instance to look on.

fieldName - the name of the field to get

Returns:

the field, or null

getFieldValue

public <T> T getFieldValue(Object target,
                           String fieldName)

Description copied from interface: IReflection

Get a field from an object.

Specified by:

getFieldValue in interface IReflection

Type Parameters:

T - the type to return as

Parameters:

target - the object to look at

fieldName - the field name to look for

Returns:

the field as T, else null

getFieldIterator

public Iterator<Field> getFieldIterator(Class<?> clazz)

Description copied from interface: IReflection

Get an iterator that will iterator over all the available fields on the given class.

Specified by:

getFieldIterator in interface IReflection

Parameters:

clazz - the class to scan

Returns:

the iterator for the fields

callField

public <T> T callField(Object target,
                       Field field)

Description copied from interface: IReflection

Call a field on a target.

Specified by:

callField in interface IReflection

Type Parameters:

T - the type of the return

Parameters:

target - the object to get the field from

field - the field to call

Returns:

the value of the field

getModifiers

public Set<String> getModifiers(Field field)

Description copied from interface: IReflection

Get the modifier names of a field.

Specified by:

getModifiers in interface IReflection

Parameters:

field - the field to look at

Returns:

a set of strings that represent the modifiers.

findConstructor

public Constructor<?> findConstructor(Class<?> clazz,
                                      Class<?>... args)

Description copied from interface: IReflection

Find a constructor on the given class.

Specified by:

findConstructor in interface IReflection

Parameters:

clazz - the class to look on

args - the arguments for the constructor

Returns:

the constructor or null

callConstructor

public <T> T callConstructor(Constructor<?> constructor,
                             Object... args)

Description copied from interface: IReflection

Call a constructor with the arguments.

Specified by:

callConstructor in interface IReflection

Type Parameters:

T - the type of the return

Parameters:

constructor - the constructor to call

args - the arguments for the constructor

Returns:

the new object, or null