workflowquery.java

一个很好实用的工作流OSWORKFLOW开发例子.有着非常优秀的灵活性.

/*
 * Copyright (c) 2002-2003 by OpenSymphony
 * All rights reserved.
 */
package com.opensymphony.workflow.query;

import java.io.Serializable;


/**
 * @deprecated use {@link WorkflowExpressionQuery} instead
 * @author Hani
 */
public class WorkflowQuery implements Serializable {
    //~ Static fields/initializers /////////////////////////////////////////////

    private static final long serialVersionUID = 8130933224983412376L;
    public final static int EQUALS = 1;
    public final static int LT = 2;
    public final static int GT = 3;
    public final static int BETWEEN = 4;
    public final static int NOT_EQUALS = 5;
    public final static int AND = 6;
    public final static int OR = 7;
    public final static int XOR = 8;
    public final static int OWNER = 1;
    public final static int START_DATE = 2;
    public final static int FINISH_DATE = 3;
    public final static int ACTION = 4;
    public final static int STEP = 5;
    public final static int CALLER = 6;
    public final static int STATUS = 7;
    public final static int HISTORY = 1;
    public final static int CURRENT = 2;

    //~ Instance fields ////////////////////////////////////////////////////////

    private Object value;
    private WorkflowQuery left;
    private WorkflowQuery right;
    private int field;
    private int operator;
    private int type;

    //~ Constructors ///////////////////////////////////////////////////////////

    public WorkflowQuery() {
    }

    public WorkflowQuery(WorkflowQuery left, int operator, WorkflowQuery right) {
        this.operator = operator;
        this.left = left;
        this.right = right;
    }

    public WorkflowQuery(int field, int type, int operator, Object value) {
        this.type = type;
        this.operator = operator;
        this.field = field;
        this.value = value;
    }

    //~ Methods ////////////////////////////////////////////////////////////////

    public int getField() {
        return field;
    }

    public WorkflowQuery getLeft() {
        return left;
    }

    public int getOperator() {
        return operator;
    }

    public WorkflowQuery getRight() {
        return right;
    }

    public int getType() {
        int qtype = type;

        if (qtype == 0) {
            if (getLeft() != null) {
                qtype = getLeft().getType();
            }
        }

        return qtype;
    }

    public Object getValue() {
        return value;
    }
}