com.mysema.query.support

Class SimpleProjectableAdapter<T>

java.lang.Object

com.mysema.query.support.SimpleProjectableAdapter<T>

Type Parameters:

T - type of entity

All Implemented Interfaces:

FilteredClause<SimpleProjectableAdapter<T>>, SimpleProjectable<T>, SimpleQuery<SimpleProjectableAdapter<T>>

public class SimpleProjectableAdapter<T>
extends java.lang.Object
implements SimpleQuery<SimpleProjectableAdapter<T>>, SimpleProjectable<T>

SimpleQueryAdapter is an adapter implementation for the SimpleQuery and SimpleProjectable interfaces

Author:

tiwe

Constructor Summary

Constructors

Constructor and Description
SimpleProjectableAdapter(Q query, Expression<T> projection)
SimpleProjectableAdapter(SimpleQuery<?> query, Projectable projectable, Expression<T> projection)

Method Summary

Methods

Modifier and Type	Method and Description
long	count() Get the count of matched elements
SimpleProjectableAdapter<T>	distinct() Set the Query to return distinct results
boolean	exists()
com.mysema.commons.lang.CloseableIterator<T>	iterate() Get the projection as a typed closeable Iterator
SimpleProjectableAdapter<T>	limit(long limit) Set the limit / max results for the query results
java.util.List<T>	list() Get the projection as a typed List
SearchResults<T>	listResults() Get the projection in SearchResults form
boolean	notExists()
SimpleProjectableAdapter<T>	offset(long offset) Set the offset for the query results
SimpleProjectableAdapter<T>	orderBy(OrderSpecifier<?>... o) Add order expressions
SimpleProjectableAdapter<T>	restrict(QueryModifiers modifiers) Set both limit and offset of the query results
<P> SimpleProjectableAdapter<T>	set(ParamExpression<P> param, P value) Set the given parameter to the given value
T	singleResult() Get the projection as a single result or null if no result is found
java.lang.String	toString()
T	uniqueResult() Get the projection as a unique result or null if no result is found
SimpleProjectableAdapter<T>	where(Predicate... e) Adds the given filter conditions

Methods inherited from class java.lang.Object

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

Constructor Detail

SimpleProjectableAdapter

public SimpleProjectableAdapter(Q query,
                        Expression<T> projection)

SimpleProjectableAdapter

public SimpleProjectableAdapter(SimpleQuery<?> query,
                        Projectable projectable,
                        Expression<T> projection)

Method Detail

exists

public boolean exists()

Specified by:

exists in interface SimpleProjectable<T>

Returns:

true, if rows matching the given criteria exist, otherwise false

notExists

public boolean notExists()

Specified by:

notExists in interface SimpleProjectable<T>

Returns:

true, if no rows matching the given criteria exist, otherwise false

count

public long count()

Description copied from interface: SimpleProjectable

Get the count of matched elements

Specified by:

count in interface SimpleProjectable<T>

Returns:

distinct

public SimpleProjectableAdapter<T> distinct()

Description copied from interface: SimpleQuery

Set the Query to return distinct results

Specified by:

distinct in interface SimpleQuery<SimpleProjectableAdapter<T>>

Returns:

limit

public SimpleProjectableAdapter<T> limit(long limit)

Description copied from interface: SimpleQuery

Set the limit / max results for the query results

Specified by:

limit in interface SimpleQuery<SimpleProjectableAdapter<T>>

Returns:

iterate

public com.mysema.commons.lang.CloseableIterator<T> iterate()

Description copied from interface: SimpleProjectable

Get the projection as a typed closeable Iterator

Specified by:

iterate in interface SimpleProjectable<T>

Returns:

list

public java.util.List<T> list()

Description copied from interface: SimpleProjectable

Get the projection as a typed List

Specified by:

list in interface SimpleProjectable<T>

Returns:

listResults

public SearchResults<T> listResults()

Description copied from interface: SimpleProjectable

Get the projection in SearchResults form

Specified by:

listResults in interface SimpleProjectable<T>

Returns:

offset

public SimpleProjectableAdapter<T> offset(long offset)

Description copied from interface: SimpleQuery

Set the offset for the query results

Specified by:

offset in interface SimpleQuery<SimpleProjectableAdapter<T>>

Returns:

orderBy

public SimpleProjectableAdapter<T> orderBy(OrderSpecifier<?>... o)

Description copied from interface: SimpleQuery

Add order expressions

Specified by:

orderBy in interface SimpleQuery<SimpleProjectableAdapter<T>>

Returns:

restrict

public SimpleProjectableAdapter<T> restrict(QueryModifiers modifiers)

Description copied from interface: SimpleQuery

Set both limit and offset of the query results

Specified by:

restrict in interface SimpleQuery<SimpleProjectableAdapter<T>>

Returns:

set

public <P> SimpleProjectableAdapter<T> set(ParamExpression<P> param,
                                  P value)

Description copied from interface: SimpleQuery

Set the given parameter to the given value

Specified by:

set in interface SimpleQuery<SimpleProjectableAdapter<T>>

Returns:

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

singleResult

public T singleResult()

Description copied from interface: SimpleProjectable

Get the projection as a single result or null if no result is found

for multiple results only the first one is returned

Specified by:

singleResult in interface SimpleProjectable<T>

Returns:

uniqueResult

public T uniqueResult()

Description copied from interface: SimpleProjectable

Get the projection as a unique result or null if no result is found

Specified by:

uniqueResult in interface SimpleProjectable<T>

Returns:

where

public SimpleProjectableAdapter<T> where(Predicate... e)

Description copied from interface: FilteredClause

Adds the given filter conditions

Skips null arguments

Specified by:

where in interface FilteredClause<SimpleProjectableAdapter<T>>

Parameters:

e - filter conditions to be added

Returns: