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An aggregation of 1.4, 1.5 modules into an ROP client jar.

There is a newer version: 4.2.1

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package org.apache.cayenne.ejbql.parser;

/**
 * Superclass of aggregated conditional nodes such as NOT, AND, OR. 
 * Defines priority of operations, so that SQL can be supplied with brackets as needed
 * 
 * @since 3.0
 */
public abstract class AggregateConditionNode extends SimpleNode {
    //defining all priorities here so that it would be easy to compare them visually
    static final int NOT_PRIORITY = 10;
    static final int AND_PRIORITY = 20;
    static final int OR_PRIORITY = 30;
    
    public AggregateConditionNode(int id) {
        super(id);
    }
    
    /**
     * Returns priority of conditional operator. 
     * This is used to decide whether brackets are needed in resulting SQL 
     */
    public abstract int getPriority();
}