de.danielbechler.diff.introspection

Class IntrospectionService

java.lang.Object

de.danielbechler.diff.introspection.IntrospectionService

All Implemented Interfaces:

IntrospectionConfigurer, IsIntrospectableResolver, PropertyAccessExceptionHandlerResolver, TypeInfoResolver

public class IntrospectionService
extends Object
implements IntrospectionConfigurer, IsIntrospectableResolver, TypeInfoResolver, PropertyAccessExceptionHandlerResolver

Author:

Daniel Bechler

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	IntrospectionService.IntrospectionMode

Nested classes/interfaces inherited from interface de.danielbechler.diff.introspection.IntrospectionConfigurer

IntrospectionConfigurer.Of

Constructor Summary

Constructors

Constructor and Description
IntrospectionService(ObjectDifferBuilder objectDifferBuilder)

Method Summary

Methods

Modifier and Type	Method and Description
ObjectDifferBuilder	and()
IntrospectionConfigurer	handlePropertyAccessExceptionsUsing(PropertyAccessExceptionHandler exceptionHandler)
Introspector	introspectorForNode(DiffNode node)
boolean	isIntrospectable(DiffNode node)
IntrospectionConfigurer.Of	ofNode(NodePath path)
IntrospectionConfigurer.Of	ofType(Class<?> type)
PropertyAccessExceptionHandler	resolvePropertyAccessExceptionHandler(Class<?> parentType, String propertyName)
IntrospectionConfigurer	setDefaultIntrospector(Introspector introspector)
IntrospectionConfigurer	setInstanceFactory(InstanceFactory instanceFactory) When assigning new values via DiffNode (e.g.
TypeInfo	typeInfoForNode(DiffNode node)

Methods inherited from class java.lang.Object

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

Constructor Detail

IntrospectionService

public IntrospectionService(ObjectDifferBuilder objectDifferBuilder)

Method Detail

isIntrospectable

public boolean isIntrospectable(DiffNode node)

Specified by:

isIntrospectable in interface IsIntrospectableResolver

Returns:

Returns true if the object represented by the given node should be compared via introspection.

resolvePropertyAccessExceptionHandler

public PropertyAccessExceptionHandler resolvePropertyAccessExceptionHandler(Class<?> parentType,
                                                                   String propertyName)

Specified by:

resolvePropertyAccessExceptionHandler in interface PropertyAccessExceptionHandlerResolver

Parameters:

parentType - The type of the object to which the property belongs.

propertyName - The name of the property.

typeInfoForNode

public TypeInfo typeInfoForNode(DiffNode node)

Specified by:

typeInfoForNode in interface TypeInfoResolver

introspectorForNode

public Introspector introspectorForNode(DiffNode node)

setInstanceFactory

public IntrospectionConfigurer setInstanceFactory(InstanceFactory instanceFactory)

Description copied from interface: IntrospectionConfigurer

When assigning new values via DiffNode (e.g. during merging) it will implicitly create missing instances of its parent objects along the path to the root object. By default those instances will be created via public non-arg constructor. If that fails a TypeInstantiationException will be thrown.

To add support for types that need to be instantiated differently you can overide the default behavior via custom InstanceFactory. When doing so, don't worry about types actually that are suitable for the default behavior, as it will automatically kick in, whenever the custom factroy returns null.

Specified by:

setInstanceFactory in interface IntrospectionConfigurer

Parameters:

instanceFactory - A custom instance factory

setDefaultIntrospector

public IntrospectionConfigurer setDefaultIntrospector(Introspector introspector)

Specified by:

setDefaultIntrospector in interface IntrospectionConfigurer

handlePropertyAccessExceptionsUsing

public IntrospectionConfigurer handlePropertyAccessExceptionsUsing(PropertyAccessExceptionHandler exceptionHandler)

Specified by:

handlePropertyAccessExceptionsUsing in interface IntrospectionConfigurer

ofType

public IntrospectionConfigurer.Of ofType(Class<?> type)

Specified by:

ofType in interface IntrospectionConfigurer

ofNode

public IntrospectionConfigurer.Of ofNode(NodePath path)

Specified by:

ofNode in interface IntrospectionConfigurer

and

public ObjectDifferBuilder and()

Specified by:

and in interface IntrospectionConfigurer