Application: gvSIG desktop

package org.gvsig.expressionevaluator.impl.function.typeconversion;

import org.apache.commons.lang3.Range;

import static org.gvsig.expressionevaluator.ExpressionBuilder.FUNCTION_TOINTEGER;

import org.gvsig.expressionevaluator.Interpreter;

import org.gvsig.expressionevaluator.spi.AbstractFunction;

import org.gvsig.tools.ToolsLocator;

import org.gvsig.tools.dataTypes.DataTypes;

import org.gvsig.tools.dataTypes.Coercion;

public class ToIntegerFunction extends AbstractFunction {

    public ToIntegerFunction() {

        super(GROUP_CONVERSION, FUNCTION_TOINTEGER, Range.is(1),null,null, null,"Integer",true);

    }

    @Override

    public boolean allowConstantFolding() {

        return true;

    }

    @Override

    public Object call(Interpreter interpreter, Object[] args) throws Exception {

        Coercion toInt = ToolsLocator.getDataTypesManager().getCoercion(DataTypes.INT);

        Object obj = this.getObject(args, 0);

        Object value = toInt.coerce(obj);

        return value;

    }

}