Package ch.tocco.nice2.persist.core.spi.entity.query.ql

Class AbstractOrderableQuery

java.lang.Object

ch.tocco.nice2.persist.core.spi.entity.query.ql.AbstractOrderableQuery

All Implemented Interfaces:

Query

Direct Known Subclasses:

AbstractHibernateQueryAdapter, AbstractRelationQueryAdapter

public abstract class AbstractOrderableQuery
extends Object
implements Query

Base implementation for Query which handles the ordering aspects.

Nested Class Summary

Nested classes/interfaces inherited from interface ch.tocco.nice2.persist.core.api.query.Query

Query.Mode

Field Summary

Fields

Modifier and Type	Field	Description
protected Ordering	ordering

Constructor Summary

Constructors

Constructor	Description
AbstractOrderableQuery()

Method Summary

Modifier and Type	Method	Description
Query	appendOrder(Ordering order)	Append the given Ordering policy to the existing ordering policy of this query.
Ordering	getOrdering()	Get a reference to the Ordering policy of this query.
boolean	hasOrdering()	Check whether this query has an ordering policy already.
Query	prependOrder(Ordering order)	Prepend the given Ordering policy to the existing ordering policy of this query.
Query	withOrder(Ordering order)	Replace the Ordering policy of this query with the given ordering policy.

Methods inherited from class java.lang.Object

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

Methods inherited from interface ch.tocco.nice2.persist.core.api.query.Query

count, execute, execute, execute, execute, execute, execute, firstResult, firstResultOrNull, getKeys, getKeys, getManager, getOnlyResult, getOnlyResult, getOnlyResultOrNull, getOnlyResultOrNull, setParameter, toQueryDefinition, uniqueResult, uniqueResultOrNull

Field Details

ordering

protected Ordering ordering

Constructor Details

AbstractOrderableQuery

public AbstractOrderableQuery()

Method Details

getOrdering

public Ordering getOrdering()

Description copied from interface: Query

Get a reference to the Ordering policy of this query. If there currently is no ordering policy, one will be created.

Specified by:

getOrdering in interface Query

Returns:

The ordering policy of this query.

hasOrdering

public boolean hasOrdering()

Description copied from interface: Query

Check whether this query has an ordering policy already.

Specified by:

hasOrdering in interface Query

Returns:

true, if this query has an ordering policy with at least one rule, false if none or one without rules (which may mean that getOrdering() will make one up on the fly).

withOrder

public Query withOrder(Ordering order)

Description copied from interface: Query

Replace the Ordering policy of this query with the given ordering policy. If the given ordering policy is null or empty, it will be ignored and the existing ordering policy of the query will be preserved.

Specified by:

withOrder in interface Query

Returns:

this query.

prependOrder

public Query prependOrder(Ordering order)

Description copied from interface: Query

Prepend the given Ordering policy to the existing ordering policy of this query.

Specified by:

prependOrder in interface Query

Parameters:

order - the ordering policy to prepend.

Returns:

this query.

appendOrder

public Query appendOrder(Ordering order)

Description copied from interface: Query

Append the given Ordering policy to the existing ordering policy of this query.

Specified by:

appendOrder in interface Query

Parameters:

order - the ordering policy to append.

Returns:

this query.