spring data mongodb中，如果对象中的属性不想加入到数据库字段中

spring data mongodb中，如果对象中的属性不想加入到数据库字段中，可加@Transient注解，声明为透明属性

spring data mongodb 官网帮助文档

http://www.boyunjian.com/javadoc/org.springframework.data/spring-data-mongodb/1.2.3.RELEASE/_/org/springframework/data/mongodb/core/query/Criteria.html#all(java.util.Collection

 package ywzn.by.scity.service.pojo;

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

 import org.springframework.data.annotation.Id;
 import org.springframework.data.annotation.Transient;
 import org.springframework.data.mongodb.core.index.CompoundIndex;
 import org.springframework.data.mongodb.core.index.CompoundIndexes;
 import org.springframework.data.mongodb.core.mapping.DBRef;
 import org.springframework.data.mongodb.core.mapping.Document;
 import org.springframework.data.mongodb.core.mapping.Field;

 @Document(collection="YpObjRelationPojo")
 @CompoundIndexes({@CompoundIndex(name="objrelation",def="{'sourceid':1,'targetid':1}")})
 public class YpObjRelationPojo implements Serializable {

     @Id
     private String Id;                    // '主键id'
     @Field("sourceid")
     private String sourceId;            //对象id
     @Field("targetid")
     private String targetId;            //对象id
     @Field("caseId")
     private String caseId;                //案件id
     @Transient                            //配置透明属性
     private int source;                    // '关系起点       不存数据库
     @Transient
     private int target;                    // '关系终点    不存数据库
     @Field("relation")
     private String relation;            // '关系名称'
     @Field("create_time")
     private Date create_Time;            // '创建时间'

     public YpObjRelationPojo(String id, String sourceid, String targetid,
             String caseId, String relation, Date create_time) {
         super();
         this.Id = id;
         this.sourceId = sourceid;
         this.targetId = targetid;
         this.caseId = caseId;
         this.relation = relation;
         this.create_Time = create_time;
     }

     public YpObjRelationPojo(String id, String sourceid, String targetid,
             String caseId, String relation) {
         super();
         this.Id = id;
         this.sourceId = sourceid;
         this.targetId = targetid;
         this.caseId = caseId;
         this.relation = relation;
     }

     public YpObjRelationPojo() {
         super();
     }

     @Override
     public String toString() {
         return "YpObjRelationPojo [id=" + Id + ", sourceid=" + sourceId
                 + ", targetid=" + targetId + ", caseId=" + caseId + ", source="
                 + source + ", target=" + target + ", relation=" + relation
                 + ", create_time=" + create_Time + "]";
     }

     /**
      * @return the id
      */
     public String getId() {
         return Id;
     }

     /**
      * @param id the id to set
      */
     public void setId(String id) {
         Id = id;
     }

     /**
      * @return the sourceId
      */
     public String getSourceId() {
         return sourceId;
     }

     /**
      * @param sourceId the sourceId to set
      */
     public void setSourceId(String sourceId) {
         this.sourceId = sourceId;
     }

     /**
      * @return the targetId
      */
     public String getTargetId() {
         return targetId;
     }

     /**
      * @param targetId the targetId to set
      */
     public void setTargetId(String targetId) {
         this.targetId = targetId;
     }

     /**
      * @return the caseId
      */
     public String getCaseId() {
         return caseId;
     }

     /**
      * @param caseId the caseId to set
      */
     public void setCaseId(String caseId) {
         this.caseId = caseId;
     }

     /**
      * @return the source
      */
     public int getSource() {
         return source;
     }

     /**
      * @param source the source to set
      */
     public void setSource(int source) {
         this.source = source;
     }

     /**
      * @return the target
      */
     public int getTarget() {
         return target;
     }

     /**
      * @param target the target to set
      */
     public void setTarget(int target) {
         this.target = target;
     }

     /**
      * @return the relation
      */
     public String getRelation() {
         return relation;
     }

     /**
      * @param relation the relation to set
      */
     public void setRelation(String relation) {
         this.relation = relation;
     }

     /**
      * @return the create_Time
      */
     public Date getCreate_Time() {
         return create_Time;
     }

     /**
      * @param create_Time the create_Time to set
      */
     public void setCreate_Time(Date create_Time) {
         this.create_Time = create_Time;
     }

 }