Filter.java

/* (c) 2014 Open Source Geospatial Foundation - all rights reserved
 * (c) 2001 - 2013 OpenPlans
 * This code is licensed under the GPL 2.0 license, available at the root
 * application directory.
 */
package org.geoserver.monitor;

import java.io.Serializable;

import org.geoserver.monitor.Query.Comparison;

/**
 * Filter used in a {@link Query}.
 * 
 * @author Justin Deoliveira, OpenGeo
 *
 */
public class Filter implements Serializable {

    Object left, right;
    Comparison type;
    
    public Filter(Object left, Object right, Comparison type) {
        this.left = left;
        this.right = right;
        this.type = type;
    }
    
    protected Filter() {
    }
    
    public Object getLeft() {
        return left;
    }
    
    public Object getRight() {
        return right;
    }
    
    public Comparison getType() {
        return type;
    }
    
    public And and(Filter other) {
        return new And(this, other);
    }
    
    public Or or(Filter other) {
        return new Or(this, other);
    }
    
    public void accept(FilterVisitor v) {
        v.visit(this);
    }
    
    @Override
    public String toString() {
        return left + " " + type + " " + right;
    }
}