org.deegree.feature.persistence.query
Class Query

java.lang.Object
  org.deegree.feature.persistence.query.Query

public class Query
extends Object

Encapsulates the parameter of a query to a FeatureStore.

Version:

$Revision: 21815 $, $Date: 2010-01-07 15:19:53 +0100 (Do, 07 Jan 2010) $

Author:

Markus Schneider, last edited by: $Author: rbezema $

Nested Class Summary

static class

Query.QueryHint Names for hints and additional parameters that a FeatureStore implementation may take into account to increase efficient query processing.

Constructor Summary

Query(IdFilter filter, String featureVersion, CRS srsName, SortProperty[] sortBy)
Creates a new Query instance that selects features based on an IdFilter.

Query(QName ftName, Envelope looseBbox, Filter filter, boolean withGeometries, int scale)
Creates a new Query instance.

Query(TypeName[] typeNames, Filter filter, String featureVersion, CRS srsName, SortProperty[] sortBy)
Creates a new Query instance.

Method Summary

Filter	getFilter()
Object	getHint(Query.QueryHint code)
SortProperty[]	getSortProperties()
TypeName[]	getTypeNames()

Methods inherited from class java.lang.Object

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

Constructor Detail

Query

public Query(QName ftName,
             Envelope looseBbox,
             Filter filter,
             boolean withGeometries,
             int scale)

Creates a new Query instance.

Parameters:

ftName - name of the requested feature type, must not be null

looseBbox - bounding box used for pre-filtering the features, can be null (no pre-filtering) Query.QueryHint.HINT_LOOSE_BBOX

filter - additional filter constraints, may be null

withGeometries - if false, the feature store may omit the geometry property values in the result Query.QueryHint.HINT_NO_GEOMETRIES

scale - if scale is positive, a scale query hint will be used

Query

public Query(TypeName[] typeNames,
             Filter filter,
             String featureVersion,
             CRS srsName,
             SortProperty[] sortBy)

Creates a new Query instance.

Parameters:

typeNames - feature type names to be queried, must not be null and contain at least one entry

filter - filter to be applied, can be null

featureVersion - specific feature version to be returned, can be null

srsName - SRS for the returned geometries, can be null

sortBy - sort criteria to be applied, can be null

Query

public Query(IdFilter filter,
             String featureVersion,
             CRS srsName,
             SortProperty[] sortBy)

Creates a new Query instance that selects features based on an IdFilter.

Parameters:

filter - filter to be applied, must not be null

featureVersion - specific feature version to be returned, can be null

srsName - SRS for the returned geometries, can be null

sortBy - sort criteria to be applied, can be null

Method Detail

getHint

public Object getHint(Query.QueryHint code)

getTypeNames

public TypeName[] getTypeNames()

getFilter

public Filter getFilter()

getSortProperties

public SortProperty[] getSortProperties()