JPA的EclipseLink Oracle數據庫缺少右括號

我有一個CriteriaQuery中：JPA的EclipseLink Oracle數據庫缺少右括號

CriteriaQuery<Employee> criteriaQuery = criteriaBuilder.createQuery(Employee.class); 
Root<Employee> root = criteriaQuery.from(Employee.class); 
criteriaQuery.where(criteriaBuilder.equal(root.get("type"), 1));

然後從現有的查詢構建rowCount時查詢：

CriteriaQuery<Long> countQuery = criteriaBuilder.createQuery(Long.class); 
    Root<Employee> root = criteriaQuery.from(Employee.class); 
    Predicate restriction = criteriaQuery.getRestriction(); 
    if (restriction != null) 
     countQuery.where(restriction); 

    countQuery.select(criteriaBuilder.countDistinct(root));

從調試，

Predicate restriction = criteriaQuery.getRestriction();

CriteriaQuery中。從調試器看到的是（TYPE =？）。上面返回的限制不是（TYPE =？），而是（（TYPE =？）=？）。

Eclipse中生成的SQL：

SELECT COUNT(DISTINCT(ID)) FROM EMPLOYEE WHERE ((TYPE = ?) = ?)

導致上的Oracle 11g數據庫錯誤。

Error Code: 907 
    Call: SELECT COUNT(DISTINCT(ID)) FROM EMPLOYEE WHERE ((TYPE = ?) = ?) 
      bind => [1, true] 
    Query: ReportQuery(referenceClass=Employee.class sql="SELECT COUNT(DISTINCT(ID)) FROM EMPLOYEE WHERE ((TYPE = ?) = ?)") 
00:31:24,718 ERROR [system] ORA-00907: missing right parenthesis 

java.sql.SQLSyntaxErrorException: ORA-00907: missing right parenthesis 

     at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:447) 
     at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:396) 
     at oracle.jdbc.driver.T4C8Oall.processError(T4C8Oall.java:951) 
     at oracle.jdbc.driver.T4CTTIfun.receive(T4CTTIfun.java:513) 
     at oracle.jdbc.driver.T4CTTIfun.doRPC(T4CTTIfun.java:227) 
     at oracle.jdbc.driver.T4C8Oall.doOALL(T4C8Oall.java:531) 
     at oracle.jdbc.driver.T4CPreparedStatement.doOall8(T4CPreparedStatement.java:208) 
     at oracle.jdbc.driver.T4CPreparedStatement.executeForDescribe(T4CPreparedStatement.java:886) 
     at oracle.jdbc.driver.OracleStatement.executeMaybeDescribe(OracleStatement.java:1175) 
     at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1296) 
     at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:3613) 
     at oracle.jdbc.driver.OraclePreparedStatement.executeQuery(OraclePreparedStatement.java:3657) 
     at oracle.jdbc.driver.OraclePreparedStatementWrapper.executeQuery(OraclePreparedStatementWrapper.java:1495) 
     at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.executeSelect(DatabaseAccessor.java:1007) 
     at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.basicExecuteCall(DatabaseAccessor.java:642) 
     at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.executeCall(DatabaseAccessor.java:558) 
     at org.eclipse.persistence.internal.sessions.AbstractSession.basicExecuteCall(AbstractSession.java:1991) 
     at org.eclipse.persistence.sessions.server.ServerSession.executeCall(ServerSession.java:570) 
     at org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.executeCall(DatasourceCallQueryMechanism.java:242) 
     at org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.executeCall(DatasourceCallQueryMechanism.java:228) 
     at org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.executeSelectCall(DatasourceCallQueryMechanism.java:299) 
     at org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.selectAllRows(DatasourceCallQueryMechanism.java:694) 
     at org.eclipse.persistence.internal.queries.ExpressionQueryMechanism.selectAllRowsFromTable(ExpressionQueryMechanism.java:2738) 
     at org.eclipse.persistence.internal.queries.ExpressionQueryMechanism.selectAllReportQueryRows(ExpressionQueryMechanism.java:2675) 
     at org.eclipse.persistence.queries.ReportQuery.executeDatabaseQuery(ReportQuery.java:848) 
     at org.eclipse.persistence.queries.DatabaseQuery.execute(DatabaseQuery.java:899) 
     at org.eclipse.persistence.queries.ObjectLevelReadQuery.execute(ObjectLevelReadQuery.java:1127) 
     at org.eclipse.persistence.queries.ReadAllQuery.execute(ReadAllQuery.java:403) 
     at org.eclipse.persistence.queries.ObjectLevelReadQuery.executeInUnitOfWork(ObjectLevelReadQuery.java:1215) 
     at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.internalExecuteQuery(UnitOfWorkImpl.java:2896) 
     at org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1793) 
     at org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1775) 
     at org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1740) 
     at org.eclipse.persistence.internal.jpa.QueryImpl.executeReadQuery(QueryImpl.java:258) 
     at org.eclipse.persistence.internal.jpa.QueryImpl.getSingleResult(QueryImpl.java:517) 
     at org.eclipse.persistence.internal.jpa.EJBQueryImpl.getSingleResult(EJBQueryImpl.java:400)

生成（（TYPE =？）=？）而不是（TYPE =？）的原因是什麼？

感謝您的任何幫助。

來源

2014-07-12 Dave

我在Oracle 11g上使用EclipseLink 2.5.1。 – Dave

不太瞭解綁定的「TYPE」的實際值，看起來被綁定的實際值內嵌入的單引號可能會導致此錯誤。

從以下站點引述解釋這一點：ORA-00907: missing right parenthesis tips

如果您在由其他單引號的短語用單引號，則必須由內單引號添加另一個單引號，以避免ORA-00907。例如，你必須使用「'「」「」爲了ORA-00907在語法不被拆毀‘’」代替。

*編輯1

想想也看你的類型參數的靜態元模型表示。例如：

ParameterExpression<String> typeParam = criteriaBuilder.parameter(Integer.class); criteriaQuery.where(criteriaBuilder.equal(root.get(Employee_.type), typeParam));

其中Employee_type是由JPA規範定義的靜態元模型。

下面是使用舊版EclipseLink的一個示例。因人而異：

JPA 2.0 Criteria API with Maven and EclipseLink

來源

2014-07-12 15:14:36 Rai

更新了問題，並找到問題。還沒有想出如何解決它。謝謝。 – Dave

有沒有辦法剝離（（TYPE = 1）= true）成爲（TYPE = 1）或阻止（TYPE = 1）被封裝爲（（TYPE = 1）= true）？ – Dave

你可以發佈你的員工實體嗎？不知道它是如何被註釋的，會影響內部生成SQL的方式。 – Rai

您不能重複使用謂詞/因爲它們依賴於綁定在特定查詢的特定CriteriaBuilder查詢之間的限制。 EclipseLink允許重用構建的查詢，但在進行更改之前，您必須訪問本機API並克隆基礎EclipseLink查詢。

來源

2014-07-14 13:45:32 Chris

我喜歡遠離本機API。如果加上虛擬1 = 1，即（TYPE =？）和（1 = 1），它就起作用。有沒有辦法來判斷一個限制是否是至少兩個布爾表達式的連接（AND）？如果爲false，則添加虛擬（1 = 1）。 – Dave

如果您不嘗試執行計數查詢，原始查詢是否工作？ – Chris

原始查詢工作。但使用criteriaQuery.getRestriction（）逐步構建查詢並添加新謂詞將失敗 – Dave

JPA的EclipseLink Oracle數據庫缺少右括號

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