org.modeshape.jcr.query.model
Class SelectQuery

java.lang.Object
  org.modeshape.jcr.query.model.Query
      org.modeshape.jcr.query.model.SelectQuery

All Implemented Interfaces:

Serializable, QueryCommand, SelectQuery, Command, LanguageObject, Visitable

public class SelectQuery
extends Query
implements SelectQuery

An implementation of SelectQuery.

See Also:

Serialized Form

Field Summary

Fields inherited from class org.modeshape.jcr.query.model.Query

IS_DISTINCT_DEFAULT

Constructor Summary

SelectQuery(Source source, Constraint constraint, List<? extends Ordering> orderings, List<? extends Column> columns, Limit limit, boolean isDistinct)
Create a new query that uses the supplied source, constraint, orderings, columns and limits.

Method Summary

Constraint	getConstraint() Gets the constraint for this query.
Source	getSource() Gets the node-tuple source for this query.
Query	withLimit(int rowLimit) Create a copy of this query, but one that uses the supplied limit on the number of result rows.
Query	withOffset(int offset) Create a copy of this query, but one that uses the supplied offset.

Methods inherited from class org.modeshape.jcr.query.model.Query

accept, adding, adding, columns, constrainedBy, constraint, distinct, equals, getColumns, getLimits, getOrderings, hashCode, isDistinct, noDistinct, orderedBy, orderings, returning, source, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.modeshape.jcr.api.query.qom.QueryCommand

getColumns, getLimits, getOrderings

Constructor Detail

SelectQuery

public SelectQuery(Source source,
                   Constraint constraint,
                   List<? extends Ordering> orderings,
                   List<? extends Column> columns,
                   Limit limit,
                   boolean isDistinct)

Create a new query that uses the supplied source, constraint, orderings, columns and limits.

Parameters:

source - the source

constraint - the constraint (or composite constraint), or null or empty if there are no constraints

orderings - the specifications of how the results are to be ordered, or null if the order is to be implementation determined

columns - the columns to be included in the results, or null or empty if there are no explicit columns and the actual result columns are to be implementation determiend

limit - the limit for the results, or null if all of the results are to be included

isDistinct - true if duplicates are to be removed from the results

Throws:

IllegalArgumentException - if the source is null

Method Detail

getConstraint

public Constraint getConstraint()

Description copied from interface: SelectQuery

Gets the constraint for this query.

Specified by:

getConstraint in interface SelectQuery

Returns:

the constraint, or null if none

getSource

public Source getSource()

Description copied from interface: SelectQuery

Gets the node-tuple source for this query.

Specified by:

getSource in interface SelectQuery

Returns:

the node-tuple source; non-null

withLimit

public Query withLimit(int rowLimit)

Description copied from interface: QueryCommand

Create a copy of this query, but one that uses the supplied limit on the number of result rows.

Overrides:

withLimit in class Query

Parameters:

rowLimit - the limit that should be used; must be a positive number

Returns:

the copy of the query that uses the supplied limit; never null

withOffset

public Query withOffset(int offset)

Description copied from interface: QueryCommand

Create a copy of this query, but one that uses the supplied offset.

Overrides:

withOffset in class Query

Parameters:

offset - the limit that should be used; may not be negative

Returns:

the copy of the query that uses the supplied offset; never null