/
OSTDWithinFunction.java
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/
OSTDWithinFunction.java
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/*
*
* * Copyright 2014 Orient Technologies.
* *
* * Licensed under the Apache License, Version 2.0 (the "License");
* * you may not use this file except in compliance with the License.
* * You may obtain a copy of the License at
* *
* * http://www.apache.org/licenses/LICENSE-2.0
* *
* * Unless required by applicable law or agreed to in writing, software
* * distributed under the License is distributed on an "AS IS" BASIS,
* * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* * See the License for the specific language governing permissions and
* * limitations under the License.
*
*/
package com.orientechnologies.orient.spatial.functions;
import com.orientechnologies.orient.core.command.OCommandContext;
import com.orientechnologies.orient.core.db.record.OIdentifiable;
import com.orientechnologies.orient.core.sql.parser.OBinaryCompareOperator;
import com.orientechnologies.orient.core.sql.parser.OExpression;
import com.orientechnologies.orient.core.sql.parser.OFromClause;
import com.orientechnologies.orient.spatial.strategy.SpatialQueryBuilderDWithin;
import com.spatial4j.core.shape.Shape;
import java.util.Collection;
/**
* Created by Enrico Risa on 12/08/15.
*/
public class OSTDWithinFunction extends OSpatialFunctionAbstract {
public static final String NAME = "st_dwithin";
public OSTDWithinFunction() {
super(NAME, 3, 3);
}
@Override
public Object execute(Object iThis, OIdentifiable iCurrentRecord, Object iCurrentResult, Object[] iParams,
OCommandContext iContext) {
Shape shape = factory.fromObject(iParams[0]);
Shape shape1 = factory.fromObject(iParams[1]);
Double distance = (Double) iParams[2];
return factory.operation().isWithInDistance(shape, shape1, distance);
}
@Override
public String getSyntax() {
return null;
}
@Override
public Iterable<OIdentifiable> searchFromTarget(OFromClause target, OBinaryCompareOperator operator, Object rightValue,
OCommandContext ctx, OExpression... args) {
return results(target, args, ctx);
}
@Override
public long estimate(OFromClause target, OBinaryCompareOperator operator, Object rightValue, OCommandContext ctx,
OExpression... args) {
Collection resultSet = results(target, args, ctx);
return resultSet == null ? -1 : resultSet.size();
}
@Override
protected String operator() {
return SpatialQueryBuilderDWithin.NAME;
}
}