NotExpression.java

package com.github.walker.easydb.criterion;

/**
 * Negates another criterion
 *
 * @author HuQingmiao
 */
public class NotExpression extends Criteria {

    private Criteria criterion;

    protected NotExpression(Criteria criterion) {
        this.criterion = criterion;
    }

    public String toSqlString() {
        return " NOT " + criterion.toSqlString();
    }

}