hibernate对视图操作，首先建立数据库视图
视图v_invite：
create
view pintu.v_invite as
select
cp.user_id as be_user_id,
cai.activity_invite_id,
cai.person_id,
cai.person_name,
cai.be_person_id,
cai.activity_id,
cai.invite_time
from
ptcom.com_person cp,
ptcom.com_activity_invite cai
where
cp.person_id = cai.be_person_id
生成hibernate视图mapping映射
<hibernate-mapping>
<class name="com.test.pojo.entity.VComActivityInvite" table="v_com_activity_invite" catalog="pintu">
<composite-id name="id" class="com.test.pojo.entity.VComActivityInviteId">
<key-property name="beUserId" type="java.lang.String">
<column name="be_user_id" length="32" />
</key-property>
<key-property name="activityInviteId" type="java.lang.Long">
<column name="activity_invite_id" />
</key-property>
<key-property name="personId" type="java.lang.Long">
<column name="person_id" />
</key-property>
<key-property name="personName" type="java.lang.String">
<column name="person_name" length="45" />
</key-property>
<key-property name="bePersonId" type="java.lang.Long">
<column name="be_person_id" />
</key-property>
<key-property name="activityId" type="java.lang.Long">
<column name="activity_id" />
</key-property>
<key-property name="inviteTime" type="java.util.Date">
<column name="invite_time" length="19" />
</key-property>
</composite-id>
</class>
</hibernate-mapping>
对性实体POJO:VComActivityInvite
public class VComActivityInvite implements java.io.Serializable {
// Fields
private VComActivityInviteId id;
// Constructors
public VComActivityInvite() {
}
public VComActivityInvite(VComActivityInviteId id) {
this.id = id;
}
// Property accessors
public VComActivityInviteId getId() {
return this.id;
}
public void setId(VComActivityInviteId id) {
this.id = id;
}
}
对应视图数据体：VComActivityInviteId
public class VComActivityInviteId implements java.io.Serializable {
// Fields
private String beUserId;
private Long activityInviteId;
private Long personId;
private String personName;
private Long bePersonId;
private Long activityId;
private Date inviteTime;
// Constructors
public VComActivityInviteId() {
}
public VComActivityInviteId(Long activityInviteId) {
this.activityInviteId = activityInviteId;
}
public VComActivityInviteId(String beUserId, Long activityInviteId,
Long personId, String personName, Long bePersonId, Long activityId,
Date inviteTime) {
this.beUserId = beUserId;
this.activityInviteId = activityInviteId;
this.personId = personId;
this.personName = personName;
this.bePersonId = bePersonId;
this.activityId = activityId;
this.inviteTime = inviteTime;
}
// Property accessors
public String getBeUserId() {
return this.beUserId;
}
public void setBeUserId(String beUserId) {
this.beUserId = beUserId;
}
public Long getActivityInviteId() {
return this.activityInviteId;
}
public void setActivityInviteId(Long activityInviteId) {
this.activityInviteId = activityInviteId;
}
public Long getPersonId() {
return this.personId;
}
public void setPersonId(Long personId) {
this.personId = personId;
}
public String getPersonName() {
return this.personName;
}
public void setPersonName(String personName) {
this.personName = personName;
}
public Long getBePersonId() {
return this.bePersonId;
}
public void setBePersonId(Long bePersonId) {
this.bePersonId = bePersonId;
}
public Long getActivityId() {
return this.activityId;
}
public void setActivityId(Long activityId) {
this.activityId = activityId;
}
public Date getInviteTime() {
return this.inviteTime;
}
public void setInviteTime(Date inviteTime) {
this.inviteTime = inviteTime;
}
public boolean equals(Object other) {
if ((this == other))
return true;
if ((other == null))
return false;
if (!(other instanceof VComActivityInviteId))
return false;
VComActivityInviteId castOther = (VComActivityInviteId) other;
return ((this.getBeUserId() == castOther.getBeUserId()) || (this
.getBeUserId() != null
&& castOther.getBeUserId() != null && this.getBeUserId()
.equals(castOther.getBeUserId())))
&& ((this.getActivityInviteId() == castOther
.getActivityInviteId()) || (this.getActivityInviteId() != null
&& castOther.getActivityInviteId() != null && this
.getActivityInviteId().equals(
castOther.getActivityInviteId())))
&& ((this.getPersonId() == castOther.getPersonId()) || (this
.getPersonId() != null
&& castOther.getPersonId() != null && this
.getPersonId().equals(castOther.getPersonId())))
&& ((this.getPersonName() == castOther.getPersonName()) || (this
.getPersonName() != null
&& castOther.getPersonName() != null && this
.getPersonName().equals(castOther.getPersonName())))
&& ((this.getBePersonId() == castOther.getBePersonId()) || (this
.getBePersonId() != null
&& castOther.getBePersonId() != null && this
.getBePersonId().equals(castOther.getBePersonId())))
&& ((this.getActivityId() == castOther.getActivityId()) || (this
.getActivityId() != null
&& castOther.getActivityId() != null && this
.getActivityId().equals(castOther.getActivityId())))
&& ((this.getInviteTime() == castOther.getInviteTime()) || (this
.getInviteTime() != null
&& castOther.getInviteTime() != null && this
.getInviteTime().equals(castOther.getInviteTime())));
}
public int hashCode() {
int result = 17;
result = 37 * result
+ (getBeUserId() == null ? 0 : this.getBeUserId().hashCode());
result = 37
* result
+ (getActivityInviteId() == null ? 0 : this
.getActivityInviteId().hashCode());
result = 37 * result
+ (getPersonId() == null ? 0 : this.getPersonId().hashCode());
result = 37
* result
+ (getPersonName() == null ? 0 : this.getPersonName()
.hashCode());
result = 37
* result
+ (getBePersonId() == null ? 0 : this.getBePersonId()
.hashCode());
result = 37
* result
+ (getActivityId() == null ? 0 : this.getActivityId()
.hashCode());
result = 37
* result
+ (getInviteTime() == null ? 0 : this.getInviteTime()
.hashCode());
return result;
}
}
在操作中，对视图进行查询，引入查询条件：
String hql = "select count(*) from VComActivityInvite vca where vca.id.beUserId = ‘" + userId+"‘";
return ((Number)vComActivityInviteDao.createQuery(hql).uniqueResult()).intValue();
父类 id 对应 <composite-id name="id" class="com.test.pojo.entity.VComActivityInviteId">
hibernate3.2对应统计数量返回LONG型，需转化如下
((Number)vComActivityInviteDao.createQuery(hql).uniqueResult()).intValue