Package ru.objectsfill.utils

Class FieldUtils

java.lang.Object

ru.objectsfill.utils.FieldUtils

public class FieldUtils
extends Object

Utility class for working with fields in Java classes.

Method Summary

Modifier and Type	Method	Description
static <T> T	addObjectWithParamConstruct(Constructor<?> constructor, Fill fill)	create instance of class with construct parameters
static <T> T	addObjectWithParamConstruct(Constructor<?> constructor, Fill fill, Class<?> tClass)	create instance of class with construct parameters
static void	doWithFields(Fill fill)	Invokes the given FieldCallback for each field in the specified class and its superclasses.
static Optional<Extend>	getExtFillParam(Field field, Fill fill)
static UnaryOperator<Object>	getObjectUnaryOperator(Fill fill)	get wrap function or default t -> t.
static UnaryOperator<Object>	getObjectUnaryOperator(Fill fill, Field field)	get wrap function or default t -> t.

Methods inherited from class java.lang.Object

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

Method Details

doWithFields

public static void doWithFields(Fill fill)

Invokes the given FieldCallback for each field in the specified class and its superclasses.

Parameters:

fill - special generated object

Throws:

IllegalArgumentException - if the class is null

IllegalStateException - if the FieldCallback encounters an error while processing a field

addObjectWithParamConstruct

public static <T> T addObjectWithParamConstruct(Constructor<?> constructor,
 Fill fill)

create instance of class with construct parameters

Type Parameters:

T - type of object

Parameters:

fill - special generated object

constructor - get construct for object creation

Returns:

T constructed object

Throws:

IllegalArgumentException - if the class is null

IllegalStateException - if the FieldCallback encounters an error while processing a field

addObjectWithParamConstruct

public static <T> T addObjectWithParamConstruct(Constructor<?> constructor,
 Fill fill,
 Class<?> tClass)

create instance of class with construct parameters

Type Parameters:

T - type of object

Parameters:

fill - special generated object

constructor - get construct for object creation

tClass - class of outer object for creation

Returns:

T constructed object

Throws:

IllegalArgumentException - if the class is null

IllegalStateException - if the FieldCallback encounters an error while processing a field

getObjectUnaryOperator

public static UnaryOperator<Object> getObjectUnaryOperator(Fill fill)

get wrap function or default t -> t. If we don't have reference to field

Parameters:

fill - the `Fill` object containing the generation parameters

Returns:

function

getObjectUnaryOperator

public static UnaryOperator<Object> getObjectUnaryOperator(Fill fill,
 Field field)

get wrap function or default t -> t. If we don't have reference to field

Parameters:

fill - the `Fill` object containing the generation parameters

field - The field for which the collection stream is being filled.

Returns:

function

getExtFillParam

public static Optional<Extend> getExtFillParam(Field field,
 Fill fill)

Parameters:

field - The field for which the collection stream is being filled.

fill - The Fill object containing the necessary information for generation.

Returns:

extended parameter for some field