Package com.jk.data.dataaccess.orm

Class JKObjectDataAccessInMemory

java.lang.Object

com.jk.data.dataaccess.orm.JKObjectDataAccessInMemory

All Implemented Interfaces:

JKObjectDataAccess

public class JKObjectDataAccessInMemory
extends Object
implements JKObjectDataAccess

This class is used to manage objects of various classes within the memory.

Version:

1.0

Author:

Dr. Jalal H. Kiswani

Constructor Summary

Constructors

Constructor	Description
JKObjectDataAccessInMemory()

Method Summary

Modifier and Type	Method	Description
<T> T	clone(T model)	This method is yet to be implemented (TBI).
void	closeTransaction(boolean commit)	This method is yet to be implemented (TBI).
<T> T	delete(Class<T> clas, Object id)	This method deletes an object from the data storage using its identifier (ID).
<T> T	delete(T model)	This method deletes an object from the data storage.
<T> void	detach(T model)	This method is yet to be implemented (TBI).
<T> List<T>	executeQuery(Class<T> clas, String queryString, Object... paramters)	This method is yet to be implemented (TBI).
<T> T	find(Class<T> clas, Object id)	This method finds an object from the data storage using its identifier (ID).
<T> List<T>	findByFieldName(Class<T> clas, String fieldName, Object value)	This method is yet to be implemented (TBI).
<T> T	findOneByFieldName(Class<T> clas, String fieldName, Object fieldValue)	This method is yet to be implemented (TBI).
<T> List<T>	getList(Class<T> clas)	This method retrieves a list of objects of the provided class type from the data storage.
<T> List<T>	getList(Class<T> clas, Map<String,Object> paramters)	This method is yet to be implemented (TBI).
<T> List<T>	getListAndCache(Class<T> clas)	This method retrieves a list of objects of a specified class type and caches the result.
<T> T	insert(T object)	This method inserts the provided object into the data storage.
Integer	insertOrUpdate(Object object)	This method inserts a new object into the data storage if it doesn't exist, or updates an existing object.
void	setMaxResults(int maxResults)	This method is yet to be implemented (TBI).
void	startTransaction()	This method is yet to be implemented (TBI).
String	update(Object object)	This method is yet to be implemented (TBI).

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.jk.data.dataaccess.orm.JKObjectDataAccess

executeSingleOutputQuery, getTenantId

Constructor Details

JKObjectDataAccessInMemory

public JKObjectDataAccessInMemory()

Method Details

insert

public <T> T insert(T object)

This method inserts the provided object into the data storage.

Specified by:

insert in interface JKObjectDataAccess

Type Parameters:

T - Specifies the type of the object.

Parameters:

object - Specifies the object to be inserted

Returns:

the inserted object.

find

public <T> T find(Class<T> clas,
 Object id)

This method finds an object from the data storage using its identifier (ID).

Specified by:

find in interface JKObjectDataAccess

Type Parameters:

T - Specifies the type of the object.

Parameters:

clas - Specifies the class type of the object.

id - Specifies the identifier (ID) of the object to find.

Returns:

the found object, or null if not found.

delete

public <T> T delete(Class<T> clas,
 Object id)

This method deletes an object from the data storage using its identifier (ID).

Specified by:

delete in interface JKObjectDataAccess

Type Parameters:

T - Specifies the type of the object.

Parameters:

clas - Specifies the class type of the object.

id - Specifies the object identifier (ID)

Returns:

the deleted object.

update

public String update(Object object)

This method is yet to be implemented (TBI).

Specified by:

update in interface JKObjectDataAccess

Parameters:

object - Specifies the object to update.

Returns:

the updated object.

insertOrUpdate

public Integer insertOrUpdate(Object object)

This method inserts a new object into the data storage if it doesn't exist, or updates an existing object.

Specified by:

insertOrUpdate in interface JKObjectDataAccess

Parameters:

object - Specifies the object to insert or update in the data storage.

Returns:

the inserted or updated object.

getList

public <T> List<T> getList(Class<T> clas)

This method retrieves a list of objects of the provided class type from the data storage.

Specified by:

getList in interface JKObjectDataAccess

Type Parameters:

T - Specifies the type of the object.

Parameters:

clas - Specifies the class type of the objects.

Returns:

a list of objects from data storage that are of the provided class type.

delete

public <T> T delete(T model)

This method deletes an object from the data storage.

Specified by:

delete in interface JKObjectDataAccess

Type Parameters:

T - Specifies the type of the object.

Parameters:

model - Specifies the object to delete.

Returns:

the deleted object.

getList

public <T> List<T> getList(Class<T> clas,
 Map<String,Object> paramters)

This method is yet to be implemented (TBI).

Specified by:

getList in interface JKObjectDataAccess

Type Parameters:

T - Specifies the type of objects to retrieve.

Parameters:

clas - Specifies the class of objects to retrieve.

paramters - Specifies a map of parameters or criteria for filtering the objects.

Returns:

a list of objects matching the specified class and criteria.

executeQuery

public <T> List<T> executeQuery(Class<T> clas,
 String queryString,
 Object... paramters)

This method is yet to be implemented (TBI).

Specified by:

executeQuery in interface JKObjectDataAccess

Type Parameters:

T - Specifies the type of objects to retrieve.

Parameters:

clas - Specifies the class of objects to retrieve.

queryString - Specifies the query string to execute.

paramters - Specifies the optional parameters to bind to the query.

Returns:

a list of objects matching the specified class and query criteria.

findByFieldName

public <T> List<T> findByFieldName(Class<T> clas,
 String fieldName,
 Object value)

This method is yet to be implemented (TBI).

Specified by:

findByFieldName in interface JKObjectDataAccess

Type Parameters:

T - Specifies the type of objects to retrieve.

Parameters:

clas - Specifies the class of objects to retrieve.

fieldName - Specifies the name of the field to search by.

value - Specifies the value to search for within the specified field.

Returns:

a list of objects matching the specified class and field value criteria.

findOneByFieldName

public <T> T findOneByFieldName(Class<T> clas,
 String fieldName,
 Object fieldValue)

This method is yet to be implemented (TBI).

Specified by:

findOneByFieldName in interface JKObjectDataAccess

Type Parameters:

T - Specifies the type of object to retrieve.

Parameters:

clas - Specifies the class of the object to retrieve.

fieldName - Specifies the name of the field to use as a filter.

fieldValue - Specifies the value to match in the specified field.

Returns:

the retrieved object, or null if no matching object is found.

setMaxResults

public void setMaxResults(int maxResults)

This method is yet to be implemented (TBI).

Specified by:

setMaxResults in interface JKObjectDataAccess

Parameters:

maxResults - Specifies the new max results shown from any executed query.

detach

public <T> void detach(T model)

This method is yet to be implemented (TBI).

Specified by:

detach in interface JKObjectDataAccess

Type Parameters:

T - Specifies the type of the object to detach.

Parameters:

model - Specifies the object to detach from the persistence context.

clone

public <T> T clone(T model)

This method is yet to be implemented (TBI).

Specified by:

clone in interface JKObjectDataAccess

Type Parameters:

T - Specifies the type of the object to clone.

Parameters:

model - Specifies the object to create a detached copy of.

Returns:

a detached copy of the input object.

startTransaction

public void startTransaction()

This method is yet to be implemented (TBI).

Specified by:

startTransaction in interface JKObjectDataAccess

closeTransaction

public void closeTransaction(boolean commit)

This method is yet to be implemented (TBI).

Specified by:

closeTransaction in interface JKObjectDataAccess

Parameters:

commit - Indicates whether to commit (true) the transaction or to roll it back (false).

getListAndCache

public <T> List<T> getListAndCache(Class<T> clas)

This method retrieves a list of objects of a specified class type and caches the result.

Specified by:

getListAndCache in interface JKObjectDataAccess

Type Parameters:

T - Specifies the type of the object.

Parameters:

clas - Specifies the class type of the objects to retrieve.

Returns:

a list of objects of the specified class type.