xiaofei.library.datastorage

接口 IDataStorage

所有已知实现类:

DatabaseStorage

public interface IDataStorage

Created by Xiaofei on 16/3/24. This interface defines basic methods of the data storage. Developers use the implementation of this interface to use the storage.

方法概要

限定符和类型	方法和说明
void	clear() Clear all the data in the storage.
<T> boolean	contains(java.lang.Class<T> clazz, java.lang.String id) Return true if the storage contains the element of the specified class and the specified id, false otherwise.
<T> boolean	contains(T element) Return true if the storage contains the element, false otherwise.
<T> void	delete(java.lang.Class<T> clazz, Condition<T> condition) Delete the elements which are of the specified class and satisfy the condition.
<T> void	delete(java.lang.Class<T> clazz, java.util.List<java.lang.String> ids) Delete the elements of the specified class and the id in the list ids.
<T> void	delete(java.lang.Class<T> clazz, java.lang.String id) Delete the element of the specified class and the specified id.
<T> void	delete(java.util.List<T> list) Delete the elements in the list.
<T> void	delete(T element) Delete the element.
<T> void	deleteAll(java.lang.Class<T> clazz) Delete all the elements of the specified class;
<T> java.util.List<T>	load(java.lang.Class<T> clazz, Condition<T> condition) Return a list of elements which satisfying the condition.
<T> java.util.List<T>	load(java.lang.Class<T> clazz, Condition<T> condition, java.util.Comparator<T> comparator) Return a list of elements which satisfying the condition.
<T> java.util.List<T>	load(java.lang.Class<T> clazz, java.util.List<java.lang.String> ids) Return a list of elements of the specified class and the specified ids.
<T> java.util.List<T>	load(java.lang.Class<T> clazz, java.util.List<java.lang.String> ids, java.util.Comparator<T> comparator) Return a list of elements of the specified class and the specified ids.
<T> T	load(java.lang.Class<T> clazz, java.lang.String id) Return the element of the specified class and the specified id.
<T> java.util.List<T>	loadAll(java.lang.Class<T> clazz) Return a list of all the elements of the specified class.
<T> java.util.List<T>	loadAll(java.lang.Class<T> clazz, java.util.Comparator<T> comparator) Return a list of all the elements of the specified class.
<T> void	storeOrUpdate(java.util.List<T> list) Store or update a list of elements of the same type.
<T> void	storeOrUpdate(java.util.List<T> list, java.util.List<java.lang.String> ids) Store or update a list of elements of the same type.
<T> void	storeOrUpdate(T element) Store or update an element.
<T> void	storeOrUpdate(T element, java.lang.String id) Store or update an element of the specified id.

方法详细资料

contains

<T> boolean contains(java.lang.Class<T> clazz,
                     java.lang.String id)

Return true if the storage contains the element of the specified class and the specified id, false otherwise.

类型参数:

T -

参数:

clazz -

id -

返回:

contains

<T> boolean contains(T element)

Return true if the storage contains the element, false otherwise. The element should have one and only one field of the String type on which the ObjectId annotation is present.

类型参数:

T -

参数:

element -

返回:

storeOrUpdate

<T> void storeOrUpdate(T element,
                       java.lang.String id)

Store or update an element of the specified id. If the storage previously contained one element of the same id, the old one is replaced by the new one. Otherwise, the storage stores the element.

类型参数:

T -

参数:

element -

id -

storeOrUpdate

<T> void storeOrUpdate(T element)

Store or update an element. The element should have one and only one field of the String type on which the ObjectId annotation is present. If the storage previously contained one element of the same id, the old one is replaced by the new one. Otherwise, the storage stores the element.

类型参数:

T -

参数:

element -

storeOrUpdate

<T> void storeOrUpdate(java.util.List<T> list,
                       java.util.List<java.lang.String> ids)

Store or update a list of elements of the same type. Each element has a corresponding id at the corresponding position in the list ids. The two lists should be of the same size.

类型参数:

T -

参数:

list -

ids -

storeOrUpdate

<T> void storeOrUpdate(java.util.List<T> list)

Store or update a list of elements of the same type. The elements should have one and only one field of the String type on which the ObjectId annotation is present.

类型参数:

T -

参数:

list -

load

<T> T load(java.lang.Class<T> clazz,
           java.lang.String id)

Return the element of the specified class and the specified id.

类型参数:

T -

参数:

clazz -

id -

返回:

loadAll

<T> java.util.List<T> loadAll(java.lang.Class<T> clazz)

Return a list of all the elements of the specified class.

类型参数:

T -

参数:

clazz -

返回:

loadAll

<T> java.util.List<T> loadAll(java.lang.Class<T> clazz,
                              java.util.Comparator<T> comparator)

Return a list of all the elements of the specified class. The list is sorted according to the comparator.

类型参数:

T -

参数:

clazz -

返回:

load

<T> java.util.List<T> load(java.lang.Class<T> clazz,
                           java.util.List<java.lang.String> ids)

Return a list of elements of the specified class and the specified ids. Each element has an id at the corresponding position in the List ids.

类型参数:

T -

参数:

clazz -

ids -

返回:

load

<T> java.util.List<T> load(java.lang.Class<T> clazz,
                           java.util.List<java.lang.String> ids,
                           java.util.Comparator<T> comparator)

Return a list of elements of the specified class and the specified ids. Each element has an id at the corresponding position in the List ids. The returned list is sorted according to the comparator.

类型参数:

T -

参数:

clazz -

ids -

返回:

load

<T> java.util.List<T> load(java.lang.Class<T> clazz,
                           Condition<T> condition)

Return a list of elements which satisfying the condition.

类型参数:

T -

参数:

clazz -

condition -

返回:

load

<T> java.util.List<T> load(java.lang.Class<T> clazz,
                           Condition<T> condition,
                           java.util.Comparator<T> comparator)

Return a list of elements which satisfying the condition. The returned list is sorted according to the comparator.

类型参数:

T -

参数:

clazz -

condition -

返回:

delete

<T> void delete(T element)

Delete the element. The element should have one and only one field of the String type on which the ObjectId annotation is present.

类型参数:

T -

参数:

element -

delete

<T> void delete(java.lang.Class<T> clazz,
                java.lang.String id)

Delete the element of the specified class and the specified id.

类型参数:

T -

参数:

clazz -

id -

deleteAll

<T> void deleteAll(java.lang.Class<T> clazz)

Delete all the elements of the specified class;

delete

<T> void delete(java.lang.Class<T> clazz,
                java.util.List<java.lang.String> ids)

Delete the elements of the specified class and the id in the list ids.

类型参数:

T -

参数:

clazz -

ids -

delete

<T> void delete(java.util.List<T> list)

Delete the elements in the list. The elements should have one and only one field of the String type on which the ObjectId annotation is present.

类型参数:

T -

参数:

list -

delete

<T> void delete(java.lang.Class<T> clazz,
                Condition<T> condition)

Delete the elements which are of the specified class and satisfy the condition.

clear

void clear()

Clear all the data in the storage.