Package org.apache.cayenne.util

Class GenericQueryResult<T>

java.lang.Object

org.apache.cayenne.util.GenericQueryResult<T>

All Implemented Interfaces:

Iterable<QueryResultItem>, QueryResult<T>

Direct Known Subclasses:

ProcedureResult

public class GenericQueryResult<T>
extends Object
implements QueryResult<T>

Generic implementation of QueryResult using List as QueryResultItem storage.

Since:

4.0

Field Summary

Fields

Modifier and Type	Field	Description
protected Class<T>	resultClass
protected List<QueryResultItem>	resultItems

Constructor Summary

Constructors

Constructor	Description
GenericQueryResult(List<QueryResultItem> resultItems)
GenericQueryResult(List<QueryResultItem> resultItems, Class<T> resultClass)

Method Summary

Modifier and Type	Method	Description
int[]	firstBatchUpdateCount()	A utility method for quickly retrieving the first batch update count array from the response.
List<T>	firstList()	A utility method for quickly retrieving the first list in the response.
int	firstUpdateCount()	A utility method for quick retrieval of the first update count from the response.
boolean	isList()	Returns whether current iteration result is a list or an update count.
Iterator<QueryResultItem>	iterator()
int	size()	Returns a number of results in the response.

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Field Details

resultClass

protected Class<T> resultClass

resultItems

protected List<QueryResultItem> resultItems

Constructor Details

GenericQueryResult

public GenericQueryResult(List<QueryResultItem> resultItems)

GenericQueryResult

public GenericQueryResult(List<QueryResultItem> resultItems,
 Class<T> resultClass)

Method Details

size

public int size()

Description copied from interface: QueryResult

Returns a number of results in the response.

Specified by:

size in interface QueryResult<T>

isList

public boolean isList()

Description copied from interface: QueryResult

Returns whether current iteration result is a list or an update count.

Specified by:

isList in interface QueryResult<T>

firstList

public List<T> firstList()

Description copied from interface: QueryResult

A utility method for quickly retrieving the first list in the response. Returns null if the query has no lists.

Specified by:

firstList in interface QueryResult<T>

firstBatchUpdateCount

public int[] firstBatchUpdateCount()

Description copied from interface: QueryResult

A utility method for quickly retrieving the first batch update count array from the response.

Specified by:

firstBatchUpdateCount in interface QueryResult<T>

firstUpdateCount

public int firstUpdateCount()

Description copied from interface: QueryResult

A utility method for quick retrieval of the first update count from the response.

Specified by:

firstUpdateCount in interface QueryResult<T>

iterator

public Iterator<QueryResultItem> iterator()

Specified by:

iterator in interface Iterable<T>