com.mysema.query.jdo.sql

Class AbstractSQLQuery<T extends AbstractSQLQuery<T>>

java.lang.Object

com.mysema.query.support.QueryBase<Q>

com.mysema.query.support.ProjectableQuery<Q>

com.mysema.query.sql.ProjectableSQLQuery<T>

com.mysema.query.jdo.sql.AbstractSQLQuery<T>

Type Parameters:

T -

All Implemented Interfaces:

FilteredClause<T>, Projectable, Query<T>, SimpleQuery<T>, SQLCommonQuery<T>

Direct Known Subclasses:

JDOSQLQuery

public abstract class AbstractSQLQuery<T extends AbstractSQLQuery<T>>
extends ProjectableSQLQuery<T>

Base class for JDO based SQLQuery implementations

Author:

tiwe

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	detach
protected javax.jdo.PersistenceManager	persistenceManager
protected FactoryExpression<?>	projection
protected List<javax.jdo.Query>	queries
protected QueryMixin<T>	queryMixin
protected Expression<?>	union
protected boolean	unionAll

Fields inherited from class com.mysema.query.sql.ProjectableSQLQuery

configuration

Constructor Summary

Constructors

Constructor and Description
AbstractSQLQuery(QueryMetadata metadata, Configuration conf, javax.jdo.PersistenceManager persistenceManager, boolean detach)

Method Summary

Methods

Modifier and Type	Method and Description
void	close()
long	count() return the amount of matched rows
QueryMetadata	getMetadata()
boolean	isDetach()
com.mysema.commons.lang.CloseableIterator<Tuple>	iterate(Expression<?>... args) iterate over the results for the given projection
<RT> com.mysema.commons.lang.CloseableIterator<RT>	iterate(Expression<RT> projection) iterate over the results for the given projection
List<Tuple>	list(Expression<?>... args) list the results for the given projection An empty list is returned for no results.
<RT> List<RT>	list(Expression<RT> expr) list the results for the given projection An empty list is returned for no results.
SearchResults<Tuple>	listResults(Expression<?>... args) list the results for the given projection
<RT> SearchResults<RT>	listResults(Expression<RT> expr) list the results for the given projection
String	toString()
Tuple	uniqueResult(Expression<?>... args) return a unique result for the given projection or null if no result is found
<RT> RT	uniqueResult(Expression<RT> expr) return a unique result for the given projection or null if no result is found

Methods inherited from class com.mysema.query.sql.ProjectableSQLQuery

addFlag, addFlag, addFlag, addFlag, addJoinFlag, addJoinFlag, clone, clone, createSerializer, exists, from, from, from, fullJoin, fullJoin, fullJoin, fullJoin, getSQL, innerJoin, innerJoin, innerJoin, innerJoin, join, join, join, join, leftJoin, leftJoin, leftJoin, leftJoin, on, on, rightJoin, rightJoin, rightJoin, rightJoin, serialize, union, union, union, union, unionAll, unionAll, unionAll, unionAll, with, with, with, withRecursive, withRecursive, withRecursive

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

map, notExists, singleResult, singleResult, transform, uniqueResult

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

distinct, equals, groupBy, groupBy, hashCode, having, having, limit, offset, orderBy, orderBy, restrict, set, where, where

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.mysema.query.Query

groupBy, having

Methods inherited from interface com.mysema.query.SimpleQuery

distinct, limit, offset, orderBy, restrict, set

Methods inherited from interface com.mysema.query.FilteredClause

where

Field Detail

detach

protected final boolean detach

persistenceManager

@Nullable
protected final javax.jdo.PersistenceManager persistenceManager

queries

protected List<javax.jdo.Query> queries

projection

@Nullable
protected FactoryExpression<?> projection

queryMixin

protected final QueryMixin<T extends AbstractSQLQuery<T>> queryMixin

union

@Nullable
protected Expression<?> union

unionAll

protected boolean unionAll

Constructor Detail

AbstractSQLQuery

public AbstractSQLQuery(QueryMetadata metadata,
                Configuration conf,
                javax.jdo.PersistenceManager persistenceManager,
                boolean detach)

Method Detail

close

public void close()

count

public long count()

Description copied from interface: Projectable

return the amount of matched rows

Specified by:

count in interface Projectable

Overrides:

count in class ProjectableSQLQuery<T extends AbstractSQLQuery<T>>

getMetadata

public QueryMetadata getMetadata()

Overrides:

getMetadata in class ProjectableSQLQuery<T extends AbstractSQLQuery<T>>

isDetach

public boolean isDetach()

iterate

public com.mysema.commons.lang.CloseableIterator<Tuple> iterate(Expression<?>... args)

Description copied from interface: Projectable

iterate over the results for the given projection

Specified by:

iterate in interface Projectable

Overrides:

iterate in class ProjectableSQLQuery<T extends AbstractSQLQuery<T>>

Returns:

iterate

public <RT> com.mysema.commons.lang.CloseableIterator<RT> iterate(Expression<RT> projection)

Description copied from interface: Projectable

iterate over the results for the given projection

Type Parameters:

RT - generic type of the Iterator

Returns:

an Iterator over the projection

list

public List<Tuple> list(Expression<?>... args)

Description copied from interface: Projectable

list the results for the given projection An empty list is returned for no results.

Specified by:

list in interface Projectable

Overrides:

list in class ProjectableSQLQuery<T extends AbstractSQLQuery<T>>

Returns:

list

public <RT> List<RT> list(Expression<RT> expr)

Description copied from interface: Projectable

list the results for the given projection An empty list is returned for no results.

Specified by:

list in interface Projectable

Overrides:

list in class ProjectableQuery<T extends AbstractSQLQuery<T>>

Type Parameters:

RT - generic type of the List

Returns:

a List over the projection

listResults

public SearchResults<Tuple> listResults(Expression<?>... args)

Description copied from interface: Projectable

list the results for the given projection

Specified by:

listResults in interface Projectable

Overrides:

listResults in class ProjectableSQLQuery<T extends AbstractSQLQuery<T>>

Returns:

listResults

public <RT> SearchResults<RT> listResults(Expression<RT> expr)

Description copied from interface: Projectable

list the results for the given projection

Returns:

toString

public String toString()

Overrides:

toString in class ProjectableSQLQuery<T extends AbstractSQLQuery<T>>

uniqueResult

@Nullable
public Tuple uniqueResult(Expression<?>... args)

Description copied from interface: Projectable

return a unique result for the given projection or null if no result is found

There is some ambiguity for missing results and null valued results, for disambiguation use the list or iterate methods instead.

Specified by:

uniqueResult in interface Projectable

Overrides:

uniqueResult in class ProjectableSQLQuery<T extends AbstractSQLQuery<T>>

Returns:

uniqueResult

@Nullable
public <RT> RT uniqueResult(Expression<RT> expr)

Description copied from interface: Projectable

return a unique result for the given projection or null if no result is found

There is some ambiguity for missing results and null valued results, for disambiguation use the list or iterate methods instead.

Specified by:

uniqueResult in interface Projectable

Overrides:

uniqueResult in class ProjectableSQLQuery<T extends AbstractSQLQuery<T>>

Type Parameters:

RT - return type

Returns:

the result or null for an empty result