org.kuali.kra.budget.calculator.query

Class QueryEngine

java.lang.Object

org.kuali.kra.budget.calculator.query.QueryEngine

public class QueryEngine
extends Object

Contains different sets of Data Collection in Hashtable. can execute query to get a subSets of the Data Collection or can add, update and delete data to a Data Collection. This class is a Singleton since it has to be accessed globally.

Constructor Summary

Constructors

Constructor and Description
QueryEngine() Creates a new instance of QueryEngine

Method Summary

Methods

Modifier and Type	Method and Description
void	addData(Object baseBean) adds a CoeusBean to the DataCollection with the specified key
void	addData(Object key, Object baseBean) adds a CoeusBean to the DataCollection with the specified key
void	addDataCollection(Object key, List value) adds a DatCollection(i.e.
void	addDataCollection(Object object, String... strings)
QueryList	cloneListData(QueryList queryList) returns a clone(copy) of dataList which is passed as the parameter.
QueryList	executeQuery(Class beanClass, Operator operator) returns a subset of Data Collection.
QueryList	executeQuery(List dataList, Operator operator) returns a subset of Data Collection.
QueryList	executeQuery(Object key, Operator operator) returns a subset of Data Collection.
QueryList	getDetails(Object key, Class beanClass) returna all beans of this Class type
QueryList	getDetails(Object key, Object collectionKey) returna all beans of this Class type
void	removeData(Class beanClass, int index) removes a CoeusBean from the DataCollection with the specified key
void	removeData(Class beanClass, Operator operator) Removes bean instances from query engine.
void	removeData(Object baseBean) removes CoeusBean from the DataCollection with the specified key
void	removeData(Object key, Operator operator) removes a CoeusBean from the DataCollection with the specified key
void	removeDataCollection(Object key) removes a DatCollection(i.e.

Methods inherited from class java.lang.Object

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

Constructor Detail

QueryEngine

public QueryEngine()

Creates a new instance of QueryEngine

Method Detail

executeQuery

public QueryList executeQuery(Class beanClass,
                     Operator operator)

returns a subset of Data Collection. This subset is got by applying the operator parameter. Operator can be a combination of multiple logical and relational conditions.

Parameters:

beanClass - bean Class

key - dataCollection key

operator - Operator

Returns:

Query List

executeQuery

public QueryList executeQuery(Object key,
                     Operator operator)

returns a subset of Data Collection. This subset is got by applying the operator parameter. Operator can be a combination of multiple logical and relational conditions.

Parameters:

collectionKey - collection key

key - data key

operator - Operator

Returns:

returns results in this Query List

executeQuery

public QueryList executeQuery(List dataList,
                     Operator operator)

returns a subset of Data Collection. This subset is got by applying the operator parameter. Operator can be a combination of multiple logical and relational conditions.

Parameters:

collectionKey - collection key

key - data key

operator - Operator

Returns:

returns results in this Query List

cloneListData

public QueryList cloneListData(QueryList queryList)

returns a clone(copy) of dataList which is passed as the parameter.

Parameters:

queryList - QueryList

Returns:

QueryList

getDetails

public QueryList getDetails(Object key,
                   Class beanClass)

returna all beans of this Class type

Parameters:

key - dataCollection key

beanClass - beanClass

Returns:

QueryList

getDetails

public QueryList getDetails(Object key,
                   Object collectionKey)

returna all beans of this Class type

Parameters:

key - dataCollection key

collectionKey - collectionKey

Returns:

QueryList

addDataCollection

public void addDataCollection(Object key,
                     List value)

adds a DatCollection(i.e. Hashtable) to QueryEngine.

Parameters:

key - DatCollection key

value - DataCollection(i.e. Hashtable)

removeDataCollection

public void removeDataCollection(Object key)

removes a DatCollection(i.e. Hashtable) with the specified key from QueryEngine.

Parameters:

key - key

addData

public void addData(Object baseBean)

adds a CoeusBean to the DataCollection with the specified key

Parameters:

baseBean - BaseBean

key - key of the DataCollection

addData

public void addData(Object key,
           Object baseBean)

adds a CoeusBean to the DataCollection with the specified key

Parameters:

baseBean - BaseBean

key - key of the DataCollection

removeData

public void removeData(Object baseBean)

removes CoeusBean from the DataCollection with the specified key

Parameters:

baseBean - BaseBean

key - DataCollection key

removeData

public void removeData(Class beanClass,
              int index)

removes a CoeusBean from the DataCollection with the specified key

Parameters:

key - DataCollection key

beanClass - Class type of the bean to locate QueryList from where the Object has to be removed

index - index at which the Object has to be removed.

removeData

public void removeData(Object key,
              Operator operator)

removes a CoeusBean from the DataCollection with the specified key

Parameters:

key - DataCollection key

beanClass - Class type of the bean to locate QueryList from where the Object has to be removed

index - index at which the Object has to be removed.

removeData

public void removeData(Class beanClass,
              Operator operator)

Removes bean instances from query engine.

Parameters:

key - data collection key.

beanClass - bean class.

operator - operator.

addDataCollection

public void addDataCollection(Object object,
                     String... strings)