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## org.modeshape.jcr.query.qom
Class JcrSelectQuery

    java.lang.Object
      org.modeshape.graph.query.model.Query
          org.modeshape.jcr.query.qom.JcrSelectQuery

All Implemented Interfaces:
  Serializable, Command, LanguageObject, QueryCommand, Visitable, SelectQuery, JcrQueryCommand

    public class JcrSelectQuery

extends Query
implements SelectQuery, JcrQueryCommand

See Also:
  Serialized Form

Field Summary

Fields inherited from class org.modeshape.graph.query.model.Query
`IS_DISTINCT_DEFAULT`

Constructor Summary
`JcrSelectQuery(JcrSource source, JcrConstraint constraint, List<? extends JcrOrdering> orderings, List<? extends JcrColumn> columns, JcrLimit limit, boolean isDistinct)` Create a new query that uses the supplied source, constraint, orderings, columns and limits.

Method Summary
`List<? extends JcrColumn>` | `columns()` Return the columns defining the query results.
`JcrConstraint` | `constraint()` Get the constraints, if there are any.
`Column[]` | `getColumns()` Gets the columns for this query.
`Constraint` | `getConstraint()` Gets the constraint for this query.
`Limit` | `getLimits()` Get the limits associated with this query.
`Ordering[]` | `getOrderings()` Gets the orderings for this query.
`Source` | `getSource()` Gets the node-tuple source for this query.
`JcrLimit` | `limits()` Get the limits associated with this query.
`List<? extends JcrOrdering>` | `orderings()` Return the orderings for this query.
`JcrSource` | `source()` Get the source for the results.
`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.graph.query.model.Query
`accept, adding, adding, constrainedBy, distinct, equals, hashCode, isDistinct, noDistinct, orderedBy, returning, toString`

Methods inherited from class java.lang.Object
`clone, finalize, getClass, notify, notifyAll, wait, wait, wait`

Methods inherited from interface org.modeshape.graph.query.model.Visitable
`accept`

Constructor Detail

### JcrSelectQuery

    public JcrSelectQuery(JcrSource source,
                          JcrConstraint constraint,
                          List<? extends JcrOrdering> orderings,
                          List<? extends JcrColumn> columns,
                          JcrLimit 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

### limits

    public JcrLimit limits()

  Get the limits associated with this query.

  Specified by:
    `limits` in interface `QueryCommand`
  Overrides:
    `limits` in class `Query`
  Returns:
    the limits; never null but possibly `unlimited`
  See Also:
    `Query.limits()`

### constraint

    public JcrConstraint constraint()

  Get the constraints, if there are any.

  Overrides:
    `constraint` in class `Query`
  Returns:
    the constraint; may be null
  See Also:
    `Query.constraint()`

### source

    public JcrSource source()

  Get the source for the results.

  Overrides:
    `source` in class `Query`
  Returns:
    the query source; never null
  See Also:
    `Query.source()`

### columns

    public List<? extends JcrColumn> columns()

  Return the columns defining the query results. If there are no columns, then the columns are implementation determined.

  Specified by:
    `columns` in interface `QueryCommand`
  Overrides:
    `columns` in class `Query`
  Returns:
    the list of columns; never null
  See Also:
    `Query.columns()`

### orderings

    public List<? extends JcrOrdering> orderings()

  Return the orderings for this query.

  Specified by:
    `orderings` in interface `QueryCommand`
  Overrides:
    `orderings` in class `Query`
  Returns:
    the list of orderings; never null
  See Also:
    `Query.orderings()`

### getConstraint

    public Constraint getConstraint()

  Gets the constraint for this query.

  Specified by:
    `getConstraint` in interface `SelectQuery`
  Returns:
    the constraint, or null if none
  See Also:
    `SelectQuery.getConstraint()`

### getSource

    public Source getSource()

  Gets the node-tuple source for this query.

  Specified by:
    `getSource` in interface `SelectQuery`
  Returns:
    the node-tuple source; non-null
  See Also:
    `SelectQuery.getSource()`

### getLimits

    public Limit getLimits()

  Get the limits associated with this query.

  Returns:
    the limits; never null but possibly `unlimited`
  See Also:
    `QueryCommand.getLimits()`

### getColumns

    public Column[] getColumns()

  Gets the columns for this query.

  Returns:
    an array of zero or more columns; non-null
  See Also:
    `QueryCommand.getColumns()`

### getOrderings

    public Ordering[] getOrderings()

  Gets the orderings for this query.

  Returns:
    an array of zero or more orderings; non-null
  See Also:
    `QueryCommand.getOrderings()`

### withLimit

    public Query withLimit(int rowLimit)

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

  Specified by:
    `withLimit` in interface `QueryCommand`
  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
  See Also:
    `Query.withLimit(int)`

### withOffset

    public Query withOffset(int offset)

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

  Specified by:
    `withOffset` in interface `QueryCommand`
  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
  See Also:
    `Query.withOffset(int)`

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