采购验退单不关联订单展示物料信息，主要是无Po验退单没有订单，无法关联出产品信息

git-svn-id: svn+ssh://10.10.101.21/source/platform/platform-b2b@2960 f3bf4e98-0cf0-11e4-a00c-a99a8b9d557d

src/main/java/com/uas/platform/b2b/model/PurchaseReturnItem.java

@@ -31,6 +31,14 @@ import com.alibaba.fastjson.annotation.JSONField;
 @Entity
 public class PurchaseReturnItem {
 
+	public Product getProduct() {
+		return product;
+	}
+
+	public void setProduct(Product product) {
+		this.product = product;
+	}
+
 	@Id
 	@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "purc$returnitem_gen")
 	@SequenceGenerator(name = "purc$returnitem_gen", sequenceName = "purc$returnitem_seq", allocationSize = 1)
@@ -197,5 +205,22 @@ public class PurchaseReturnItem {
 		}
 		return list;
 	}
+	
+	/**
+	 * 物料资料
+	 */
+	@OneToOne(optional = true, cascade = { CascadeType.REFRESH })
+	@JoinColumn(name = "pri_prodid", insertable = false, updatable = false, nullable = true)
+	private Product product;
+
+	public Long getProdId() {
+		return prodId;
+	}
+
+	public void setProdId(Long prodId) {
+		this.prodId = prodId;
+	}
 
+	@Column(name = "pri_prodid")
+	private Long prodId;
 }