JPA EclipseLink oracle db缺少右括号

我有一个标准问题：

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

criteriaQuery.where是（类型=？），从调试器中查看。 上面返回的限制不是（TYPE=？），而是（（TYPE=？）=？）

Eclipse生成的SQL:

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

这会在oracle 11g db上导致错误

 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=？）的原因是什么

---

感谢您的帮助。

在不太了解绑定的“TYPE”的实际值的情况下，似乎绑定的实际值中嵌入的单引号可能会导致此错误

以下网站的引文对此进行了解释：

如果在被其他单引号包围的短语中使用单引号，则必须在内部单引号中添加另一个单引号，以避免ORA-00907。例如，您必须使用“”””而不是“”””，以避免ORA-00907被抛出语法

*编辑1

还可以考虑查看类型化参数的静态元模型表示。例如：

ParameterExpression<String> typeParam = criteriaBuilder.parameter( Integer.class );

criteriaQuery.where( criteriaBuilder.equal( root.get( Employee_.type ), typeParam ) );

ParameterExpression typeParam=criteriaBuilder.parameter（Integer.class）；
其中（criteriaBuilder.equal（root.get（Employee.type），typeParam））；

其中Employee_uuType是JPA规范定义的静态元模型

下面是一个使用旧版本EclipseLink的例子。YMMV：

---

不能在查询之间重用谓词/限制，因为它们与特定的CriteriaBuilder绑定，后者与特定的查询绑定。EclipseLink确实允许重用生成的查询，但在进行更改之前，您必须访问本机API并克隆基础EclipseLink查询

我正在Oracle 11g上使用EclipseLink 2.5.1。更新了问题，发现了问题。我还没有找到解决办法。谢谢。有没有办法把（（TYPE=1）=true）去掉，变成（TYPE=1），或者防止（TYPE=1）被包装成（（TYPE=1）=true）？你能发布你的员工实体吗？不确定它的注释方式是否会影响SQL的内部生成方式。请参阅上面的编辑。这是因为您能够对代码库进行这样的更改，从而利用这一点。为了回答您之前的问题，我不知道有什么方法可以去除生成的SQL片段，除非您执行类似于扩展AbstractQuery.getRestriction方法的操作，并在那里执行一些后处理。不确定这是否是最好的前进方式。尝试使用ParameterExpression处理上面的建议。我喜欢远离本机API。如果添加一个伪1=1，即（TYPE=？）和（1=1），它就可以工作。有没有办法判断一个限制是否是至少两个布尔表达式的连词（AND）？如果为false，则添加dummy（1=1）。如果不尝试执行计数查询，原始查询是否有效？原始查询有效。但是使用criteriaQuery.getRestriction（）以增量方式构建查询并添加新谓词将失败。如上所述，从getRestriction返回的值不能在其他查询中重用，因为它与原始查询绑定。EclipseLink不支持它，因为当需要从新查询中克隆或重建本机表达式对象时，它会导致它们共享。谢谢。但是JPA提供了getRestriction（）方法，结果应该是可用的。包装器（（a=b）=true）是错误的，因为某些数据库不喜欢这种语法。

 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)

ParameterExpression<String> typeParam = criteriaBuilder.parameter( Integer.class );

criteriaQuery.where( criteriaBuilder.equal( root.get( Employee_.type ), typeParam ) );