com.mysema.query.collections.impl
Class AbstractColQuery<SubType extends AbstractColQuery<SubType>>

java.lang.Object
  com.mysema.query.QueryBase<SubType>
      com.mysema.query.support.ProjectableQuery<SubType>
          com.mysema.query.collections.impl.AbstractColQuery<SubType>

All Implemented Interfaces:

Projectable

Direct Known Subclasses:

ColQueryImpl

public abstract class AbstractColQuery<SubType extends AbstractColQuery<SubType>>
extends ProjectableQuery<SubType>

AbstractColQuery provides a base class for Collection query implementations. Extend it like this

 public class MyType extends AbstractColQuery<MyType>{
   ...
 }
 

Version:

$Id$

Author:

tiwe

See Also:

ColQuery

Field Summary

Fields inherited from class com.mysema.query.QueryBase

queryMixin

Constructor Summary

AbstractColQuery(QueryMetadata metadata, EvaluatorFactory evaluatorFactory)

Method Summary

long	count() return the amount of matched rows
<A> SubType	from(Path<A> entity, Iterable<? extends A> col)
protected Iterator<?>	handleFromWhereMultiSource(List<Expr<?>> sources)
protected Iterator<?>	handleFromWhereSingleSource(List<Expr<?>> sources)
protected Iterator<?>	handleOrderBy(List<Expr<?>> sources, Iterator<?> it)
protected <RT> Iterator<RT>	handleSelect(Iterator<?> it, List<Expr<?>> sources, Expr<RT> projection)
Iterator<Object[]>	iterate(Expr<?>[] args) iterate over the results for the given projection
<RT> Iterator<RT>	iterate(Expr<RT> projection) iterate over the results for the given projection
<RT> SearchResults<RT>	listResults(Expr<RT> projection) list the results for the given projection

Methods inherited from class com.mysema.query.support.ProjectableQuery

countDistinct, iterate, iterateDistinct, iterateDistinct, iterateDistinct, list, list, list, listDistinct, listDistinct, listDistinct, listDistinctResults, map, uniqueResult, uniqueResult, uniqueResult

Methods inherited from class com.mysema.query.QueryBase

groupBy, having, limit, offset, orderBy, restrict, toString, where

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractColQuery

public AbstractColQuery(QueryMetadata metadata,
                        EvaluatorFactory evaluatorFactory)

Method Detail

count

public long count()

Description copied from interface: Projectable

return the amount of matched rows

from

public <A> SubType from(Path<A> entity,
                        Iterable<? extends A> col)

handleFromWhereMultiSource

protected Iterator<?> handleFromWhereMultiSource(List<Expr<?>> sources)
                                          throws Exception

Throws:

Exception

handleFromWhereSingleSource

protected Iterator<?> handleFromWhereSingleSource(List<Expr<?>> sources)
                                           throws Exception

Throws:

Exception

handleOrderBy

protected Iterator<?> handleOrderBy(List<Expr<?>> sources,
                                    Iterator<?> it)
                             throws Exception

Throws:

Exception

handleSelect

protected <RT> Iterator<RT> handleSelect(Iterator<?> it,
                                         List<Expr<?>> sources,
                                         Expr<RT> projection)
                             throws Exception

Throws:

Exception

iterate

public Iterator<Object[]> iterate(Expr<?>[] args)

Description copied from interface: Projectable

iterate over the results for the given projection

Returns:

iterate

public <RT> Iterator<RT> iterate(Expr<RT> projection)

Description copied from interface: Projectable

iterate over the results for the given projection

Type Parameters:

RT - generic type of the Iteratpr

Returns:

an Iterator over the projection

listResults

public <RT> SearchResults<RT> listResults(Expr<RT> projection)

Description copied from interface: Projectable

list the results for the given projection

Returns: