org.springframework.data.util
Class ClassTypeInformation<S>

java.lang.Object
  org.springframework.data.util.ClassTypeInformation<S>

All Implemented Interfaces:

TypeInformation<S>

public class ClassTypeInformation<S>
extends java.lang.Object

TypeInformation for a plain Class.

Author:

Oliver Gierke

Field Summary

static TypeInformation<java.util.Collection>	COLLECTION
static TypeInformation<java.util.List>	LIST
static TypeInformation<java.util.Map>	MAP
static TypeInformation<java.lang.Object>	OBJECT
static TypeInformation<java.util.Set>	SET

Constructor Summary

ClassTypeInformation(java.lang.Class<S> type)
Creates ClassTypeInformation for the given type.

Method Summary

protected TypeInformation<?>	createInfo(java.lang.reflect.Type fieldType) Creates TypeInformation for the given Type.
boolean	equals(java.lang.Object obj)
static <S> TypeInformation<S>	from(java.lang.Class<S> type) Simple factory method to easily create new instances of ClassTypeInformation.
static <S> TypeInformation<S>	fromReturnTypeOf(java.lang.reflect.Method method) Creates a TypeInformation from the given method's return type.
TypeInformation<?>	getActualType() Transparently returns the Map value type if the type is a Map, returns the component type if the type TypeInformation.isCollectionLike() or the simple type if none of this applies.
TypeInformation<?>	getComponentType() Returns the component type for Collections or the key type for Maps.
TypeInformation<?>	getMapValueType() Will return the type of the value in case the underlying type is a Map.
java.util.List<TypeInformation<?>>	getParameterTypes(java.lang.reflect.Constructor<?> constructor)
TypeInformation<?>	getProperty(java.lang.String fieldname) Returns the property information for the property with the given name.
TypeInformation<?>	getReturnType(java.lang.reflect.Method method) Returns a TypeInformation for the return type of the given Method.
java.lang.Class<S>	getType() Returns the type of the property.
protected java.util.Map<java.lang.reflect.TypeVariable,java.lang.reflect.Type>	getTypeVariableMap() Returns the type variable map.
int	hashCode()
boolean	isCollectionLike() Returns whether the type can be considered a collection, which means it's a container of elements, e.g. a Collection and Array or anything implementing Iterable.
boolean	isMap() Returns whether the property is a Map.
protected java.lang.Class<S>	resolveType(java.lang.reflect.Type type) Resolves the given type into a plain Class.

Methods inherited from class java.lang.Object

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

Field Detail

COLLECTION

public static final TypeInformation<java.util.Collection> COLLECTION

LIST

public static final TypeInformation<java.util.List> LIST

SET

public static final TypeInformation<java.util.Set> SET

MAP

public static final TypeInformation<java.util.Map> MAP

OBJECT

public static final TypeInformation<java.lang.Object> OBJECT

Constructor Detail

ClassTypeInformation

public ClassTypeInformation(java.lang.Class<S> type)

Creates ClassTypeInformation for the given type.

Parameters:

type -

Method Detail

from

public static <S> TypeInformation<S> from(java.lang.Class<S> type)

Simple factory method to easily create new instances of ClassTypeInformation.

Type Parameters:

S -

Parameters:

type -

Returns:

fromReturnTypeOf

public static <S> TypeInformation<S> fromReturnTypeOf(java.lang.reflect.Method method)

Creates a TypeInformation from the given method's return type.

Parameters:

method -

Returns:

getType

public java.lang.Class<S> getType()

Description copied from interface: TypeInformation

Returns the type of the property. Will resolve generics and the generic context of

Specified by:

getType in interface TypeInformation<S>

Returns:

getComponentType

public TypeInformation<?> getComponentType()

Description copied from interface: TypeInformation

Returns the component type for Collections or the key type for Maps.

Specified by:

getComponentType in interface TypeInformation<S>

Returns:

getTypeVariableMap

protected java.util.Map<java.lang.reflect.TypeVariable,java.lang.reflect.Type> getTypeVariableMap()

Returns the type variable map. Will traverse the parents up to the root on and use it's map.

Returns:

createInfo

protected TypeInformation<?> createInfo(java.lang.reflect.Type fieldType)

Creates TypeInformation for the given Type.

Parameters:

fieldType -

Returns:

resolveType

protected java.lang.Class<S> resolveType(java.lang.reflect.Type type)

Resolves the given type into a plain Class.

Parameters:

type -

Returns:

getParameterTypes

public java.util.List<TypeInformation<?>> getParameterTypes(java.lang.reflect.Constructor<?> constructor)

Specified by:

getParameterTypes in interface TypeInformation<S>

getProperty

public TypeInformation<?> getProperty(java.lang.String fieldname)

Description copied from interface: TypeInformation

Returns the property information for the property with the given name. Supports proeprty traversal through dot notation.

Specified by:

getProperty in interface TypeInformation<S>

Returns:

getActualType

public TypeInformation<?> getActualType()

Description copied from interface: TypeInformation

Transparently returns the Map value type if the type is a Map, returns the component type if the type TypeInformation.isCollectionLike() or the simple type if none of this applies.

Specified by:

getActualType in interface TypeInformation<S>

Returns:

isMap

public boolean isMap()

Description copied from interface: TypeInformation

Returns whether the property is a Map. If this returns true you can expect TypeInformation.getComponentType() as well as TypeInformation.getMapValueType() to return something not null.

Specified by:

isMap in interface TypeInformation<S>

Returns:

getMapValueType

public TypeInformation<?> getMapValueType()

Description copied from interface: TypeInformation

Will return the type of the value in case the underlying type is a Map.

Specified by:

getMapValueType in interface TypeInformation<S>

Returns:

isCollectionLike

public boolean isCollectionLike()

Description copied from interface: TypeInformation

Returns whether the type can be considered a collection, which means it's a container of elements, e.g. a Collection and Array or anything implementing Iterable. If this returns true you can expect TypeInformation.getComponentType() to return a non-null value.

Specified by:

isCollectionLike in interface TypeInformation<S>

Returns:

getReturnType

public TypeInformation<?> getReturnType(java.lang.reflect.Method method)

Description copied from interface: TypeInformation

Returns a TypeInformation for the return type of the given Method. Will potentially resolve generics information against the current types type parameter bindings.

Specified by:

getReturnType in interface TypeInformation<S>

Parameters:

method - must not be null.

Returns:

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object