org.dizitart.no2.util

Class ObjectUtils

java.lang.Object

org.dizitart.no2.util.ObjectUtils

public final class ObjectUtils
extends java.lang.Object

A utility class for Object.

Since:

1.0

Method Summary

Modifier and Type	Method and Description
static ObjectFilter	createUniqueFilter(java.lang.Object object, java.lang.reflect.Field idField) Creates unique filter from the object.
static <T> java.util.Set<Index>	extractIndices(NitriteMapper nitriteMapper, java.lang.Class<T> type) Extract indices information by scanning for Index annotated fields.
static <T> java.lang.String	findObjectStoreName(java.lang.Class<T> type) Generates the name of an ObjectRepository.
static <T> java.lang.reflect.Field	getIdField(NitriteMapper nitriteMapper, java.lang.Class<T> type) Gets the field marked with Id annotation.
static boolean	isObjectStore(java.lang.String collectionName) Checks whether a collection name is a valid object store name.
static <T> T	newInstance(java.lang.Class<T> type)

Methods inherited from class java.lang.Object

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

Method Detail

findObjectStoreName

public static <T> java.lang.String findObjectStoreName(java.lang.Class<T> type)

Generates the name of an ObjectRepository.

Type Parameters:

T - the type parameter

Parameters:

type - the type of object stored in the repository

Returns:

the name of the object repository.

extractIndices

public static <T> java.util.Set<Index> extractIndices(NitriteMapper nitriteMapper,
                                                      java.lang.Class<T> type)

Extract indices information by scanning for Index annotated fields.

Type Parameters:

T - the type parameter

Parameters:

nitriteMapper - the NitriteMapper

type - the type of the object stored in the repository

Returns:

the set of all Index annotations found.

getIdField

public static <T> java.lang.reflect.Field getIdField(NitriteMapper nitriteMapper,
                                                     java.lang.Class<T> type)

Gets the field marked with Id annotation.

Type Parameters:

T - the type parameter

Parameters:

nitriteMapper - the nitrite mapper

type - the type

Returns:

the id field

createUniqueFilter

public static ObjectFilter createUniqueFilter(java.lang.Object object,
                                              java.lang.reflect.Field idField)

Creates unique filter from the object.

Parameters:

object - the object

idField - the id field

Returns:

the equals filter

isObjectStore

public static boolean isObjectStore(java.lang.String collectionName)

Checks whether a collection name is a valid object store name.

Parameters:

collectionName - the collection name

Returns:

true if it is a valid object store name; false otherwise.

newInstance

public static <T> T newInstance(java.lang.Class<T> type)