数据加载中……
ejb 3.0 具名查询和原生查询的写法列子。
package com.vsc.ejb.persistence.query;

import java.io.Serializable;
import java.sql.Timestamp;

import javax.persistence.CascadeType;
import javax.persistence.ColumnResult;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;
import javax.persistence.NamedNativeQueries;
import javax.persistence.NamedNativeQuery;
import javax.persistence.NamedQueries;
import javax.persistence.NamedQuery;
import javax.persistence.SqlResultSetMapping;
import javax.persistence.SqlResultSetMappings;
import javax.persistence.Table;
import javax.persistence.TableGenerator;

import com.clindataware.cdms.ejb.persistence.study.Study;
import com.clindataware.cdms.ejb.persistence.study.Subject;

@Entity
@Table(name = "cdms_query")
//这里可以放多个具名查询,有多个具名查询必须要用到NamedQueries。
@NamedQueries( {
        @NamedQuery(name = "Query.statisticByItem", query = "select count(query.itemoid) as sum,query.eventpath,query.formpath,query.itemoid,query.isprocessed"
                + "  from Query query "
                + " where query.study.id=:studyid and query.isdisable='false'"
                + " group by query.eventpath,query.formpath,query.itemoid,query.isprocessed"),
        // sum, pid, pname, isp?
        @NamedQuery(name = "Query.statisticByInvestigator", query = "select count(query.participantid) as sum,user.fullname,query.participantid,query.isprocessed"
                + "  from Query query,Participant part,User user"
                + " where query.study.id=:studyid "
                + "   and part.studyid=:studyid "
                + "   and query.participantid=part.user.id "
                + "   and part.user.id=user.id "
                + "   and query.isdisable='false' "
                + " group by query.participantid,query.isprocessed,user.fullname "),
})
//这里可以放多个原生的具名查询,有多个原生的具名查询必须要用到NamedNativeQueries。
@NamedNativeQueries({
        // sum, pid, pname, isp?
        @NamedNativeQuery(name = "Query.statisticBySite", query = "select count(b.id) as sum,b.name,b.id,a.isprocessed from " +
                            "(" +
                            " select query.isprocessed,org.siteid as org_siteid,subject.siteid as sub_siteid" +
                            " from cdms_Query query, cdms_Organization_Study org, cdms_Subject subject" +
                            " where query.studyid=:studyid and query.studyid=org.studyid " +
                            " and query.subjectid=subject.id and query.isdisable='false'" +
                            ") a" +
                            " right join"+
                            " (select distinct site.* from cdms_Query query, cdms_Organization site, cdms_Organization_Study org, cdms_Subject subject" +
                            " where query.studyid=:studyid and site.id=org.siteid and query.studyid=org.studyid " +
                            " and site.category=1 and site.id=subject.siteid" +
                            " ) b on (a.org_siteid = b.id and a.sub_siteid = b.id) " +
                            " group by b.id, b.name, a.isprocessed",
                            resultSetMapping = "Query.statisticBySiteMapping"),
        // sum, qtype, code, isp?
        @NamedNativeQuery(name = "Query.statisticByCause", query = "select count(query.id) as sum,qtype.name as name,qtype.code as code,query.isprocessed as isprocessed from cdms_querytype qtype left join cdms_query query on ( query.studyid = :studyid  and query.querytype = qtype.code  and query.isdisable = 'false' ) group by qtype.name,qtype.code,query.isprocessed",
                            resultSetMapping = "Query.statisticByCauseMapping")
})
//SqlResultSetMapping这定结果集返回的实体类型或标量值。
@SqlResultSetMappings({
   
        @SqlResultSetMapping(name = "Query.statisticByCauseMapping", columns = {
                @ColumnResult(name = "sum"), @ColumnResult(name = "name"),
                @ColumnResult(name = "code"), @ColumnResult(name = "isprocessed") }),
        @SqlResultSetMapping(name = "Query.statisticBySiteMapping", columns = {
                @ColumnResult(name = "sum"), @ColumnResult(name = "name"),
                @ColumnResult(name = "id"), @ColumnResult(name = "isprocessed") })
})

public class Query implements Serializable {

    private static final long serialVersionUID = 5025535683766463922L;

    private Long id;

    private String correctedvalue;

    private String correctedcause;

    private Boolean isdisable;

    private Long lastmodifierid;

    private String queryvalue;

    private Subject subject;

    private Integer querytype;

    private Long creatorid;

    private Study study;

    private Boolean isprocessed;

    private Timestamp lastmodifydate;

    private String querynumber;

    private Long participantid;

    private Boolean iscorrected;

    private Timestamp createdate;

    private String querycause;

    private Integer pagenumber;

    private String itemoid;

    private String itemname;

    private String iteminformation;

    private String eventpath;

    private String formpath;

    private Timestamp enddate;

    public Query() {
        super();
    }

    @TableGenerator(name = "queryGen", table = "cdms_seq", pkColumnName = "pkvalue", valueColumnName = "value", pkColumnValue = "cdms_query", allocationSize = 1)
    @Id
    @GeneratedValue(strategy = GenerationType.TABLE, generator = "queryGen")
    public Long getId() {
        return this.id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    public String getCorrectedvalue() {
        return this.correctedvalue;
    }

    public void setCorrectedvalue(String correctedvalue) {
        this.correctedvalue = correctedvalue;
    }

    public String getCorrectedcause() {
        return this.correctedcause;
    }

    public void setCorrectedcause(String correctedcause) {
        this.correctedcause = correctedcause;
    }

    public Boolean getIsdisable() {
        return this.isdisable;
    }

    public void setIsdisable(Boolean isdisable) {
        this.isdisable = isdisable;
    }

    public Long getLastmodifierid() {
        return this.lastmodifierid;
    }

    public void setLastmodifierid(Long lastmodifierid) {
        this.lastmodifierid = lastmodifierid;
    }

    public String getQueryvalue() {
        return this.queryvalue;
    }

    public void setQueryvalue(String queryvalue) {
        this.queryvalue = queryvalue;
    }

    @ManyToOne(cascade = CascadeType.REFRESH)
    @JoinColumn(name = "subjectid", referencedColumnName = "id")
    public Subject getSubject() {
        return this.subject;
    }

    public void setSubject(Subject subject) {
        this.subject = subject;
    }

    public Integer getQuerytype() {
        return this.querytype;
    }

    public void setQuerytype(Integer querytype) {
        this.querytype = querytype;
    }

    public Long getCreatorid() {
        return this.creatorid;
    }

    public void setCreatorid(Long creatorid) {
        this.creatorid = creatorid;
    }

    @ManyToOne(cascade = CascadeType.REFRESH)
    @JoinColumn(name = "studyid", referencedColumnName = "id")
    public Study getStudy() {
        return this.study;
    }

    public void setStudy(Study study) {
        this.study = study;
    }

    public Boolean getIsprocessed() {
        return this.isprocessed;
    }

    public void setIsprocessed(Boolean isprocessed) {
        this.isprocessed = isprocessed;
    }

    public Timestamp getLastmodifydate() {
        return this.lastmodifydate;
    }

    public void setLastmodifydate(Timestamp lastmodifydate) {
        this.lastmodifydate = lastmodifydate;
    }

    public String getQuerynumber() {
        return this.querynumber;
    }

    public void setQuerynumber(String querynumber) {
        this.querynumber = querynumber;
    }

    public Long getParticipantid() {
        return this.participantid;
    }

    public void setParticipantid(Long participantid) {
        this.participantid = participantid;
    }

    public Boolean getIscorrected() {
        return this.iscorrected;
    }

    public void setIscorrected(Boolean iscorrected) {
        this.iscorrected = iscorrected;
    }

    public Timestamp getCreatedate() {
        return this.createdate;
    }

    public void setCreatedate(Timestamp createdate) {
        this.createdate = createdate;
    }

    public String getQuerycause() {
        return this.querycause;
    }

    public void setQuerycause(String querycause) {
        this.querycause = querycause;
    }

    public String getIteminformation() {
        return iteminformation;
    }

    public void setIteminformation(String iteminformation) {
        this.iteminformation = iteminformation;
    }

    public String getItemname() {
        return itemname;
    }

    public void setItemname(String itemname) {
        this.itemname = itemname;
    }

    public String getItemoid() {
        return itemoid;
    }

    public void setItemoid(String itemoid) {
        this.itemoid = itemoid;
    }

    public Integer getPagenumber() {
        return pagenumber;
    }

    public void setPagenumber(Integer pagenumber) {
        this.pagenumber = pagenumber;
    }

    /**
     * @return Returns the eventpath.
     */
    public String getEventpath() {
        return eventpath;
    }

    /**
     * @param eventpath
     *            The eventpath to set.
     */
    public void setEventpath(String eventpath) {
        this.eventpath = eventpath;
    }

    /**
     * @return Returns the formpath.
     */
    public String getFormpath() {
        return formpath;
    }

    /**
     * @param formpath
     *            The formpath to set.
     */
    public void setFormpath(String formpath) {
        this.formpath = formpath;
    }

    public Timestamp getEnddate() {
        return enddate;
    }

    public void setEnddate(Timestamp enddate) {
        this.enddate = enddate;
    }

}


posted on 2008-03-14 09:34 java flex 结合 阅读(1439) 评论(3)  编辑  收藏

评论

# re: ejb 3.0 具名查询和原生查询的写法列子。 2008-03-14 12:30 千里冰封

应该再讲讲它们的用法以及差异啊
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# re: ejb 3.0 具名查询和原生查询的写法列子。 2008-03-17 13:35 java flex 结合

具名查询 - 就是预先定义好ejb ql,然后在创建查询时通过名称来引用他们。为了能在不同的场合复用,你会在java中定义String类型的常量,同样为了复用,你也可以预定义查询。如果统一在一处定义好查询,你就可以根据需要随时对其进行调用好修改。
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# re: ejb 3.0 具名查询和原生查询的写法列子。 2008-03-17 13:43 java flex 结合

ejb ql语法丰富,应该能满足绝大部分的查询要求。不过有时候,可能你想用一下只有某家厂商的数据库才提供的Native功能。这是我们就会用到原生查询(Native Query)。
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