Class DefaultFieldValueGenerator

java.lang.Object

org.powermock.core.DefaultFieldValueGenerator

public class DefaultFieldValueGenerator
extends Object

Fills the fields with default not-null values. If a field type is an interface a proxy returning default values for each method will be created. If it's an abstract class a new concrete implementation of that type will created and instantiated at run-time.

There are two scenarios where a field-type cannot possibly be assigned.

1. When a class contains a field of it's own type, which would lead to infinite recursion, null is assigned.
2. When the field type is an abstract Java system class with no visible constructor (package-private) null is assigned.

Constructor Summary

Constructors

Constructor	Description
DefaultFieldValueGenerator()

Method Summary

Modifier and Type	Method	Description
static <T> T	fillWithDefaultValues(T object)
private static Object	instantiateFieldType(Field field)
private static boolean	isClass(Class<?> fieldType)
private static Class<?>	substituteKnownProblemTypes(Class<?> fieldType)	Substitute class types that are known to cause problems when generating them.

Methods inherited from class Object

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

Constructor Details

DefaultFieldValueGenerator

public DefaultFieldValueGenerator()

Method Details

fillWithDefaultValues

public static <T> T fillWithDefaultValues(T object)

instantiateFieldType

private static Object instantiateFieldType(Field field)

isClass

private static boolean isClass(Class<?> fieldType)

substituteKnownProblemTypes

private static Class<?> substituteKnownProblemTypes(Class<?> fieldType)

Substitute class types that are known to cause problems when generating them.

Parameters:

fieldType - the field type.

Returns:

A field-type substitute or the original class.