在带有 MS SQL Server 2008 的 WebSphere Application Server 7 上使用 EntityManager 的合并方法更新数据库中的实体时，生成了错误的 SQL 查询（在 SET 关键字之后没有更新参数（参见下面的堆栈跟踪））。
当我尝试合并没有对 DB 进行更改的实体时，很可能会出现此问题，但这并没有让我更接近解决方案。
有人对此有解决方案/解决方法吗？
Caused by: <openjpa-1.2.4-SNAPSHOT-r422266:1481680 nonfatal general error> org.apache.openjpa.persistence.PersistenceException: Неправильный синтаксис около ключевого слова "WHERE". {prepstmnt 1814850604 UPDATE COMPANY_REF SET WHERE ID = ? [params=(int) 11751]} [code=156, state=S0001]
FailedObject: ru.hostco.jpa.Company-11751
at org.apache.openjpa.jdbc.sql.DBDictionary.narrow(DBDictionary.java:4315)
at org.apache.openjpa.jdbc.sql.DBDictionary.newStoreException(DBDictionary.java:4280)
at org.apache.openjpa.jdbc.sql.SQLExceptions.getStore(SQLExceptions.java:102)
at org.apache.openjpa.jdbc.sql.SQLExceptions.getStore(SQLExceptions.java:72)
at org.apache.openjpa.jdbc.kernel.PreparedStatementManagerImpl.flushAndUpdate(PreparedStatementManagerImpl.java:132)
at org.apache.openjpa.jdbc.kernel.PreparedStatementManagerImpl.flushInternal(PreparedStatementManagerImpl.java:90)
at org.apache.openjpa.jdbc.kernel.PreparedStatementManagerImpl.flush(PreparedStatementManagerImpl.java:73)
at org.apache.openjpa.jdbc.kernel.OperationOrderUpdateManager.flushPrimaryRow(OperationOrderUpdateManager.java:203)
at org.apache.openjpa.jdbc.kernel.OperationOrderUpdateManager.flush(OperationOrderUpdateManager.java:89)
at org.apache.openjpa.jdbc.kernel.AbstractUpdateManager.flush(AbstractUpdateManager.java:91)
at org.apache.openjpa.jdbc.kernel.AbstractUpdateManager.flush(AbstractUpdateManager.java:74)
at org.apache.openjpa.jdbc.kernel.JDBCStoreManager.flush(JDBCStoreManager.java:721)
at org.apache.openjpa.kernel.DelegatingStoreManager.flush(DelegatingStoreManager.java:130)
... 51 more
编辑 1
有一些实体实体和合并的代码。
@Stateless
public class CompanyPersistanceManagerImpl implements CompanyPersistanceManager {
private static Logger _logger = Logger
.getLogger(CompanyPersistanceManagerImpl.class.getName());
@PersistenceContext(unitName = "ListGatewayJPA")
private EntityManager entityManager;
@EJB
private SettingsPersistenceManager settingsPersistenceManager;
...
@Override
public Company updateCompany(Company company) {
company = entityManager.merge(company);
entityManager.flush();
return company;
}
...
}
@Entity
@Table(name = "COMPANY_REF")
@NamedQueries({
@NamedQuery(name = "getAllCompanies", query = "SELECT c FROM Company c ORDER BY c.name"),
@NamedQuery(name = "getCompanyByName", query = "SELECT c FROM Company c WHERE c.name = :name"),
@NamedQuery(name = "getCompanyByDeltaCode", query = "SELECT c FROM Company c WHERE c.code = :code"),
@NamedQuery(name = "getCompanyById", query = "SELECT c FROM Company c WHERE c.id = :ID"), })
public class Company implements Serializable {
private static final long serialVersionUID = 1L;
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
@Column(name = "ID")
private int id;
@Column(name = "NAME")
private String name;
@Column(name = "INN")
private String inn;
@Column(name = "ENCODING")
private String encoding;
@Column(name = "CODE")
private String code;
@Column(name = "ACC", length = 20)
private String acc;
@Column(name = "FEE_ACC", length = 20)
private String feeAcc;
@Column(name = "WWA", length = 7)
private String wwa;
@OneToOne(cascade = CascadeType.ALL)
@JoinColumn(name = "BENATTR_ID")
@ForeignKey
private Benattr benattr;
@ManyToMany(fetch = FetchType.EAGER)
@JoinTable(name = "COMPANY_TRANSFERTYPE_REL", joinColumns = { @JoinColumn(name = "COMPANY_ID", referencedColumnName = "ID") }, inverseJoinColumns = { @JoinColumn(name = "TRANSFER_TYPE_ID", referencedColumnName = "ID") })
private Set<TransferType> transferType;
public static enum WWA_VALUES {
NEVER, ALWAYS, REQUEST
}
@Transient
private RGAORG info;
@Transient
private boolean selected = false;
public Company() {
super();
}
public String getAcc() {
return acc;
}
public void setAcc(String acc) {
this.acc = acc;
}
public int getId() {
return this.id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return this.name;
}
public void setName(String name) {
this.name = name;
}
public String getInn() {
return this.inn;
}
public void setInn(String inn) {
this.inn = inn;
}
public String getEncoding() {
return this.encoding;
}
public void setEncoding(String encoding) {
this.encoding = encoding;
}
public Set<TransferType> getTransferType() {
if (transferType == null) {
transferType = new HashSet<TransferType>();
}
return transferType;
}
public void setTransferType(Set<TransferType> transferType) {
this.transferType = transferType;
}
public TransferType[] getTransferTypeAsArray() {
TransferType[] arr = null;
if (transferType != null) {
arr = new TransferType[transferType.size()];
return transferType.toArray(arr);
} else {
arr = new TransferType[0];
return arr;
}
}
public String getCode() {
return code;
}
public void setCode(String code) {
this.code = code;
}
public RGAORG getInfo() {
return info;
}
public void setInfo(RGAORG info) {
this.info = info;
}
public boolean isSelected() {
return selected;
}
public void setSelected(boolean selected) {
this.selected = selected;
}
/*
* (non-Javadoc)
*
* @see java.lang.Object#hashCode()
*/
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + id;
return result;
}
/*
* (non-Javadoc)
*
* @see java.lang.Object#equals(java.lang.Object)
*/
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (!(obj instanceof Company)) {
return false;
}
Company other = (Company) obj;
if (id != other.id) {
return false;
}
return true;
}
public String getFeeAcc() {
return feeAcc;
}
public void setFeeAcc(String feeAcc) {
this.feeAcc = feeAcc;
}
public String getWwa() {
return wwa;
}
public void setWwa(String wwa) {
this.wwa = wwa;
}
public Benattr getBenattr() {
return benattr;
}
public void setBenattr(Benattr benattr) {
this.benattr = benattr;
}
}