/*
* JBoss, Home of Professional Open Source.
* See the COPYRIGHT.txt file distributed with this work for information
* regarding copyright ownership. Some portions may be licensed
* to Red Hat, Inc. under one or more contributor license agreements.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA.
*/
package org.teiid.translator.jdbc.oracle;
import java.util.ArrayList;
import java.util.List;
import org.teiid.language.Expression;
import org.teiid.language.Function;
import org.teiid.language.Literal;
import org.teiid.translator.jdbc.FunctionModifier;
public class OracleSpatialFunctionModifier extends FunctionModifier {
/**
* If either of the first two parameters are a Literal String, then we need to put the literal itself in the SQL
* to be passed to Oracle, without the tick marks
*/
public List<?> translate(Function function) {
List<Expression> params = function.getParameters();
List<Object> objs = new ArrayList<Object>();
objs.add(function.getName());
objs.add("("); //$NON-NLS-1$
addParamWithConversion(objs, params.get(0));
objs.add(", "); //$NON-NLS-1$
addParamWithConversion(objs, params.get(1));
for (int i = 2; i < params.size(); i++) {
objs.add(", "); //$NON-NLS-1$
objs.add(params.get(i));
}
objs.add(")"); //$NON-NLS-1$
return objs;
}
protected void addParamWithConversion(List<Object> objs,
Expression expression) {
if ((expression instanceof Literal)
&& (((Literal) expression).getValue() instanceof String)) {
objs.add(((Literal) expression).getValue());
} else {
objs.add(expression);
}
}
}