package com.googlecode.mjorm.query.criteria;
import com.googlecode.mjorm.ObjectMapper;
import com.googlecode.mjorm.mql.MqlCriterionFunction;
import com.googlecode.mjorm.mql.AbstractMqlCriterionFunction;
import com.mongodb.BasicDBList;
import com.mongodb.BasicDBObject;
public class ModCriterion
extends AbstractCriterion {
private Number left;
private Number right;
public ModCriterion(Number left, Number right) {
this.left = left;
this.right = right;
}
/**
* @return the left
*/
public Number getLeft() {
return left;
}
/**
* @return the right
*/
public Number getRight() {
return right;
}
/**
* {@inheritDoc}
*/
@Override
public Object toQueryObject(ObjectMapper mapper) {
BasicDBList numbers = new BasicDBList();
numbers.add(left);
numbers.add(right);
return new BasicDBObject("$mod", numbers);
}
public static MqlCriterionFunction createFunction(final String functionName) {
return new AbstractMqlCriterionFunction() {
protected void init() {
setFunctionName(functionName);
setExactArgs(2);
setTypes(Number.class);
}
@Override
protected Criterion doCreate(Object[] values) {
return new ModCriterion(
Number.class.cast(values[0]),
Number.class.cast(values[1]));
}
};
}
}