java - HSQLDB自动更新架构

Question

例如，我有以下实体:

@Entity
public class MyClass {

    @Id
    @GeneratedValue
    private Integer Id;
    private String value;
    private boolean check = false; // <-- HERE!
    // getters & setters

}

如果我决定将 check 属性的名称更改为 validate:

@Entity
public class MyClass {

    @Id
    @GeneratedValue
    private Integer Id;
    private String value;
    private boolean validate = false; // <--  HERE!
    // getters & setters

}

我配置了一个 hsqldb:

<bean id="hikariConfig" class="com.zaxxer.hikari.HikariConfig" autowire="no" >
    <property name="poolName" value="springHikariCP" />
    <property name="dataSourceClassName" value="org.hsqldb.jdbc.JDBCDataSource" />
    <property name="dataSourceProperties">
        <props>
            <prop key="url">jdbc:hsqldb:file:${user.home}/db/data;hsqldb.lock_file=false</prop>
            <prop key="user">sa</prop>
            <prop key="password"></prop>
        </props>
    </property>
</bean>

<bean id="entityManagerFactory"
    class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
    <property name="dataSource" ref="dataSource" />
    <property name="packagesToScan" value="com.example.domain" />
    <property name="jpaVendorAdapter">
        <bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter" />
    </property>
    <property name="jpaProperties" ref="hibernateProperties" />
</bean>

<bean name="hibernateProperties" autowire="byName" 
    class="org.springframework.beans.factory.config.PropertiesFactoryBean">
    <property name="properties">
        <props>
            <prop key="hibernate.dialect">org.hibernate.dialect.HSQLDialect</prop>
            <prop key="hibernate.show_sql">true</prop>
            <prop key="hibernate.hbm2ddl.auto">update</prop> // <-- HERE!
            <prop key="hibernate.default_schema">PUBLIC</prop>
            <prop key="hibernate.current_session_context_class">org.springframework.orm.hibernate4.SpringSessionContext</prop>
            <prop key="hibernate.connection.CharSet">utf8</prop>
            <prop key="hibernate.connection.characterEncoding">utf8</prop>
            <prop key="hibernate.connection.useUnicode">true</prop>
        </props>
    </property>
</bean>

由于 hibernate.hbm2ddl.auto 设置为 update 如果我对代码进行任何更改，它不应该更新架构吗？

我在尝试访问 validate 时遇到此错误，因为架构未更新:

Caused by: org.hibernate.exception.SQLGrammarException: could not prepare statement
    at org.hibernate.exception.internal.SQLExceptionTypeDelegate.convert(SQLExceptionTypeDelegate.java:80) ~[hibernate-core-4.3.9.Final.jar:4.3.9.Final]
    at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:49) ~[hibernate-core-4.3.9.Final.jar:4.3.9.Final]
    at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:126) ~[hibernate-core-4.3.9.Final.jar:4.3.9.Final]
at org.hibernate.engine.jdbc.internal.StatementPreparerImpl$StatementPreparationTemplate.prepareStatement(StatementPreparerImpl.java:196) ~[hibernate-core-4.3.9.   Final.jar:4.3.9.Final]
    at org.hibernate.engine.jdbc.internal.StatementPreparerImpl.prepareQueryStatement(StatementPreparerImpl.java:160) ~[hibernate-core-4.3.9.Final.jar:4.3.9.Final]
    at org.hibernate.loader.Loader.prepareQueryStatement(Loader.java:1885) ~[hibernate-core-4.3.9.Final.jar:4.3.9.Final]
    at org.hibernate.loader.Loader.executeQueryStatement(Loader.java:1862) ~[hibernate-core-4.3.9.Final.jar:4.3.9.Final]
    at org.hibernate.loader.Loader.executeQueryStatement(Loader.java:1839) ~[hibernate-core-4.3.9.Final.jar:4.3.9.Final]
    at org.hibernate.loader.Loader.doQuery(Loader.java:910) ~[hibernate-core-4.3.9.Final.jar:4.3.9.Final]
    at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:355) ~[hibernate-core-4.3.9.Final.jar:4.3.9.Final]
    at org.hibernate.loader.Loader.doList(Loader.java:2554) ~[hibernate-core-4.3.9.Final.jar:4.3.9.Final]
    at org.hibernate.loader.Loader.doList(Loader.java:2540) ~[hibernate-core-4.3.9.Final.jar:4.3.9.Final]
    at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2370) ~[hibernate-core-4.3.9.Final.jar:4.3.9.Final]
    at org.hibernate.loader.Loader.list(Loader.java:2365) ~[hibernate-core-4.3.9.Final.jar:4.3.9.Final]
    at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:497) ~[hibernate-core-4.3.9.Final.jar:4.3.9.Final]
    at org.hibernate.hql.internal.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:387) ~[hibernate-core-4.3.9.Final.jar:4.3.9.Final]
    at org.hibernate.engine.query.spi.HQLQueryPlan.performList(HQLQueryPlan.java:236) ~[hibernate-core-4.3.9.Final.jar:4.3.9.Final]
    at org.hibernate.internal.SessionImpl.list(SessionImpl.java:1300) ~[hibernate-core-4.3.9.Final.jar:4.3.9.Final]
    at org.hibernate.internal.QueryImpl.list(QueryImpl.java:103) ~[hibernate-core-4.3.9.Final.jar:4.3.9.Final]
    at org.hibernate.jpa.internal.QueryImpl.list(QueryImpl.java:573) ~[hibernate-entitymanager-4.3.9.Final.jar:4.3.9.Final]
    at org.hibernate.jpa.internal.QueryImpl.getResultList(QueryImpl.java:449) ~[hibernate-entitymanager-4.3.9.Final.jar:4.3.9.Final]
at org.hibernate.jpa.criteria.compile.CriteriaQueryTypeQueryAdapter.getResultList(CriteriaQueryTypeQueryAdapter.java:67) ~[hibernate-entitymanager-4.3.9.Final. jar:4.3.9.Final]
at org.springframework.data.jpa.repository.query.JpaQueryExecution$CollectionExecution.doExecute(JpaQueryExecution.java:114) ~[spring-data-jpa-1.9.1.RELEASE.jar:na ]
    at org.springframework.data.jpa.repository.query.JpaQueryExecution.execute(JpaQueryExecution.java:78) ~[spring-data-jpa-1.9.1.RELEASE.jar:na]
    at org.springframework.data.jpa.repository.query.AbstractJpaQuery.doExecute(AbstractJpaQuery.java:100) ~[spring-data-jpa-1.9.1.RELEASE.jar:na]
    at org.springframework.data.jpa.repository.query.AbstractJpaQuery.execute(AbstractJpaQuery.java:91) ~[spring-data-jpa-1.9.1.RELEASE.jar:na]
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.doInvoke(RepositoryFactorySupport.java:462) ~[spring-   data-commons-1.11.1.RELEASE.jar:na]
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.invoke(RepositoryFactorySupport.java:440) ~[spring-data -commons-1.11.1.RELEASE.jar:na]
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.2.2.RELEASE.jar:4.2.2.RELEASE]
at org.springframework.data.projection.DefaultMethodInvokingMethodInterceptor.invoke(DefaultMethodInvokingMethodInterceptor.java:61) ~[spring-data-commons-1.11.1.  RELEASE.jar:na]
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.2.2.RELEASE.jar:4.2.2.RELEASE]
at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99) ~[spring-tx-4.2.2.RELEASE.jar:4.2.2.  RELEASE]
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:281) ~[spring-tx-4.2.2.RELEASE.jar:4. 2.2.RELEASE]
    at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96) ~[spring-tx-4.2.2.RELEASE.jar:4.2.2.RELEASE]
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.2.2.RELEASE.jar:4.2.2.RELEASE]
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:136) ~[spring-tx-4.2.2.RELEASE .jar:4.2.2.RELEASE]
    ... 112 common frames omitted
Caused by: java.sql.SQLSyntaxErrorException: user lacks privilege or object not found: MYCLAS0_.VALIDATE
    at org.hsqldb.jdbc.JDBCUtil.sqlException(Unknown Source) ~[hsqldb-2.3.3.jar:2.3.3]
    at org.hsqldb.jdbc.JDBCUtil.sqlException(Unknown Source) ~[hsqldb-2.3.3.jar:2.3.3]
    at org.hsqldb.jdbc.JDBCPreparedStatement.<init>(Unknown Source) ~[hsqldb-2.3.3.jar:2.3.3]
    at org.hsqldb.jdbc.JDBCConnection.prepareStatement(Unknown Source) ~[hsqldb-2.3.3.jar:2.3.3]
    at com.zaxxer.hikari.proxy.ConnectionProxy.prepareStatement(ConnectionProxy.java:280) ~[HikariCP-java6-2.2.5.jar:na]
    at com.zaxxer.hikari.proxy.ConnectionJavassistProxy.prepareStatement(ConnectionJavassistProxy.java) ~[HikariCP-java6-2.2.5.jar:na]
    at sun.reflect.GeneratedMethodAccessor112.invoke(Unknown Source) ~[na:na]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_45]
    at java.lang.reflect.Method.invoke(Method.java:497) ~[na:1.8.0_45]
    at net.bull.javamelody.JdbcWrapper$ConnectionInvocationHandler.invoke(JdbcWrapper.java:189) ~[javamelody-core-1.57.0.jar:1.57.0]
    at net.bull.javamelody.JdbcWrapper$DelegatingInvocationHandler.invoke(JdbcWrapper.java:286) ~[javamelody-core-1.57.0.jar:1.57.0]
    at com.sun.proxy.$Proxy44.prepareStatement(Unknown Source) ~[na:na]
    at org.hibernate.engine.jdbc.internal.StatementPreparerImpl$5.doPrepare(StatementPreparerImpl.java:162) ~[hibernate-core-4.3.9.Final.jar:4.3.9.Final]
at org.hibernate.engine.jdbc.internal.StatementPreparerImpl$StatementPreparationTemplate.prepareStatement(StatementPreparerImpl.java:186) ~[hibernate-core-4.3.9.   Final.jar:4.3.9.Final]
    ... 144 common frames omitted
Caused by: org.hsqldb.HsqlException: user lacks privilege or object not found: MYCLAS0_.VALIDATE
    at org.hsqldb.error.Error.error(Unknown Source) ~[hsqldb-2.3.3.jar:2.3.3]
    at org.hsqldb.error.Error.error(Unknown Source) ~[hsqldb-2.3.3.jar:2.3.3]
    at org.hsqldb.ExpressionColumn.checkColumnsResolved(Unknown Source) ~[hsqldb-2.3.3.jar:2.3.3]
    at org.hsqldb.QueryExpression.resolve(Unknown Source) ~[hsqldb-2.3.3.jar:2.3.3]
    at org.hsqldb.ParserDQL.compileCursorSpecification(Unknown Source) ~[hsqldb-2.3.3.jar:2.3.3]
    at org.hsqldb.ParserCommand.compilePart(Unknown Source) ~[hsqldb-2.3.3.jar:2.3.3]
    at org.hsqldb.ParserCommand.compileStatement(Unknown Source) ~[hsqldb-2.3.3.jar:2.3.3]
    at org.hsqldb.Session.compileStatement(Unknown Source) ~[hsqldb-2.3.3.jar:2.3.3]
    at org.hsqldb.StatementManager.compile(Unknown Source) ~[hsqldb-2.3.3.jar:2.3.3]
    at org.hsqldb.Session.execute(Unknown Source) ~[hsqldb-2.3.3.jar:2.3.3]
    ... 156 common frames omitted

更新:

打开sql日志后我看到这个:

ERROR org.hibernate.tool.hbm2ddl.SchemaUpdate (SchemaUpdate.java:261) main :HHH000388: Unsuccessful: alter table PUBLIC.my_class add column validate boolean not null
ERROR org.hibernate.tool.hbm2ddl.SchemaUpdate (SchemaUpdate.java:262) main :default expression needed in statement [alter table PUBLIC.my_class add column validate boolean not null]

我不知道为什么没有将 default false 添加到语句中。此外，它还尝试添加新列而不是更新它

Answer 1

因为 boolean 不能为 null，我注意到在对象上初始化 validate=false 没有任何效果。所以我强制在 JPA 中这样做:

@Column(columnDefinition = "boolean default false")
private boolean validate = false;