periodworker.java

Sequoia ERP是一个真正的企业级开源ERP解决方案。它提供的模块包括：电子商务应用(e-commerce), POS系统(point of sales),知识管理,存货与仓库管理

/*
 * $Id: $
 *
 * Copyright 2006-2006 The Apache Software Foundation
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations
 * under the License.
 */

/*
 * Utilities for time periods
 * @author Leon Torres ([e-mail])
 */

package org.ofbiz.common.period;

import java.sql.Timestamp;
import java.util.List;

import org.ofbiz.base.util.UtilDateTime;
import org.ofbiz.base.util.UtilMisc;
import org.ofbiz.entity.GenericValue;
import org.ofbiz.entity.condition.EntityCondition;
import org.ofbiz.entity.condition.EntityConditionList;
import org.ofbiz.entity.condition.EntityExpr;
import org.ofbiz.entity.condition.EntityOperator;

public class PeriodWorker {

    public static String module = PeriodWorker.class.getName();
    
    /**
     * Method to get a condition that checks that the given fieldName is in a given timePeriod.
     */
    public static EntityCondition getFilterByPeriodExpr(String fieldName, GenericValue timePeriod) {
        Timestamp fromDate;
        Timestamp thruDate;
        if (timePeriod.get("fromDate") instanceof Timestamp) {
            fromDate = timePeriod.getTimestamp("fromDate");
            thruDate = timePeriod.getTimestamp("thruDate");
        } else {
            fromDate = UtilDateTime.toTimestamp(timePeriod.getDate("fromDate"));
            thruDate = UtilDateTime.toTimestamp(timePeriod.getDate("thruDate"));
        }

        EntityConditionList betweenCondition = new EntityConditionList(UtilMisc.toList(
                    new EntityExpr( fieldName, EntityOperator.GREATER_THAN, fromDate ),
                    new EntityExpr( fieldName, EntityOperator.LESS_THAN_EQUAL_TO, thruDate )
                    ), EntityOperator.AND);
        List conditions = UtilMisc.toList(new EntityExpr( fieldName, EntityOperator.NOT_EQUAL, null ), betweenCondition);
        return new EntityConditionList(UtilMisc.toList(conditions), EntityOperator.AND);
    }
}