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Oracle Fusion Middleware Java API Reference for Oracle TopLink
11g Release 1 (11.1.1)

E28847-01


org.eclipse.persistence.expressions.spatial
Class SpatialExpressionFactory

java.lang.Object
  extended by org.eclipse.persistence.expressions.spatial.SpatialExpressionFactory


public class SpatialExpressionFactory
extends java.lang.Object

This class is used to construct expressions that use Oracle Spatial operators

ExpressionBuilder builder = new ExpressionBuilder(); Expression withinDistance = SpatialExpressions.withinDistance(myJGeometry1, myJGeometry2, "DISTANCE=10"); session.readAllObjects(GeometryHolder.class, withinDistance);
Since:
Oracle TopLink 11.1.1.0.0

Constructor Summary
SpatialExpressionFactory()
           

 

Method Summary
static Expression filter(Expression geom1, java.lang.Object geom2, SpatialParameters params)
          PUBLIC: Return an Expression for the MDSYS.SDO_FILTER Spatial Operator on the Oracle Database Use of this operator requires the Java spatial classes SpatialParameters parameters = new SpatialParameters(); parameters.setQueryType(QueryType.WINDOW); Expression selectCriteria = SpatialExpressions.filter(jGeometry1, jGeometry2, parameters);
static Expression getSpatialExpression(int operator, Expression geom1, java.lang.Object geom2, java.lang.String params)
          INTERNAL: A utility method to build a SpatialExpression
static Expression nearestNeighbor(Expression geom1, java.lang.Object geom2, SpatialParameters params)
          PUBLIC: Return an Expression for the MDSYS.SDO_NN Spatial Operator on the Oracle Database Use of this operator requires the Java spatial classes SpatialParameters parameters = new SpatialParameters(); parameters.setUnit(Units.M); Expression selectCriteria = SpatialExpressions.nearestNeighbor(jGeometry1, jGeometry2, parameters);
static Expression relate(Expression geom1, java.lang.Object geom2, SpatialParameters params)
          PUBLIC: Return an Expression for the MDSYS.MDSYS.SDO_RELATE Spatial Operator on the Oracle Database Use of this operator requires the Java spatial classes SpatialParameters parameters = new SpatialParameters(); parameters..setMask(Mask.ANYINTERACT).setQueryType(QueryType.WINDOW); Expression selectCriteria = SpatialExpressions.relate(jGeometry1, jGeometry2, parameters);
static Expression withinDistance(Expression geom1, java.lang.Object geom2, SpatialParameters params)
          PUBLIC: Return an Expression for the MDSYS.SDO_WITHIN_DISTANCE Spatial Operator on the Oracle Database Use of this expression requires the Java spatial classes SpatialParameters parameters = new SpatialParameters(); parameters.setDistance(10d); Expression selectCriteria = SpatialExpressions.withinDistance(jGeometry1, jGeometry2, parameters);

 

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

 

Constructor Detail

SpatialExpressionFactory

public SpatialExpressionFactory()

Method Detail

withinDistance

public static Expression withinDistance(Expression geom1,
                                        java.lang.Object geom2,
                                        SpatialParameters params)
PUBLIC: Return an Expression for the MDSYS.SDO_WITHIN_DISTANCE Spatial Operator on the Oracle Database Use of this expression requires the Java spatial classes
SpatialParameters parameters = new SpatialParameters(); parameters.setDistance(10d); Expression selectCriteria = SpatialExpressions.withinDistance(jGeometry1, jGeometry2, parameters);
Parameters:
geom1 - an Expression representing a JGeometryObject
geom2 - a JGeometryObject or an Expression representing a JGeometryObject
params - a SpatialParameters object configured with the parameters to the call
Returns:
a TopLink Expression

relate

public static Expression relate(Expression geom1,
                                java.lang.Object geom2,
                                SpatialParameters params)
PUBLIC: Return an Expression for the MDSYS.MDSYS.SDO_RELATE Spatial Operator on the Oracle Database Use of this operator requires the Java spatial classes
SpatialParameters parameters = new SpatialParameters(); parameters..setMask(Mask.ANYINTERACT).setQueryType(QueryType.WINDOW); Expression selectCriteria = SpatialExpressions.relate(jGeometry1, jGeometry2, parameters);
Parameters:
geom1 - an Expression representing a JGeometryObject
geom2 - a JGeometryObject or an Expression representing a JGeometryObject
params - a SpatialParameters object configured with the parameters to the call
Returns:
a TopLink Expression

filter

public static Expression filter(Expression geom1,
                                java.lang.Object geom2,
                                SpatialParameters params)
PUBLIC: Return an Expression for the MDSYS.SDO_FILTER Spatial Operator on the Oracle Database Use of this operator requires the Java spatial classes
SpatialParameters parameters = new SpatialParameters(); parameters.setQueryType(QueryType.WINDOW); Expression selectCriteria = SpatialExpressions.filter(jGeometry1, jGeometry2, parameters);
Parameters:
geom1 - an Expression representing a JGeometryObject
geom2 - a JGeometryObject or an Expression representing a JGeometryObject
params - a SpatialParameters object configured with the parameters to the call
Returns:
a TopLink Expression

nearestNeighbor

public static Expression nearestNeighbor(Expression geom1,
                                         java.lang.Object geom2,
                                         SpatialParameters params)
PUBLIC: Return an Expression for the MDSYS.SDO_NN Spatial Operator on the Oracle Database Use of this operator requires the Java spatial classes
SpatialParameters parameters = new SpatialParameters(); parameters.setUnit(Units.M); Expression selectCriteria = SpatialExpressions.nearestNeighbor(jGeometry1, jGeometry2, parameters);
Parameters:
geom1 - an Expression representing a JGeometryObject
geom2 - a JGeometryObject or an Expression representing a JGeometryObject
params - a SpatialParameters object configured with the parameters to the call
Returns:
a TopLink Expression

getSpatialExpression

public static Expression getSpatialExpression(int operator,
                                              Expression geom1,
                                              java.lang.Object geom2,
                                              java.lang.String params)
INTERNAL: A utility method to build a SpatialExpression
Parameters:
operator - the ordinal of the operator
geom1 -
geom2 -
params -
Returns:

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