IMathOpHandler.java

package com.bigdata.rdf.internal.constraints;

import org.openrdf.model.Literal;

import com.bigdata.rdf.internal.IV;
import com.bigdata.rdf.internal.constraints.MathBOp.MathOp;
import com.bigdata.rdf.model.BigdataValueFactory;

/**
 * Interface for handling math operations on specific data type.
 *
 */
public interface IMathOpHandler {

    /**
     * Check if this utility applies for the argument types.
     * @param args
     * @return
     */
    public boolean canInvokeMathOp(final Literal... args);

    /**
     * Perform the operation on arguments.
     * @param l1
     * @param iv1
     * @param l2
     * @param iv2
     * @param op
     * @param vf
     * @return
     */
    public IV doMathOp(final Literal l1, final IV iv1,
            final Literal l2, final IV iv2,
            final MathOp op, final BigdataValueFactory vf);
}