Package org.hibernate.hql

Examples of org.hibernate.hql.QueryTranslator

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  }

  protected void runClassicTranslator(String hql) throws Exception {
    SessionFactoryImplementor factory = getSessionFactoryImplementor();
    Map replacements = new HashMap();
    QueryTranslator oldQueryTranslator = null;
    try {
      QueryTranslatorFactory classic = new ClassicQueryTranslatorFactory();
      oldQueryTranslator = classic.createQueryTranslator( hql, hql, Collections.EMPTY_MAP, factory );
      oldQueryTranslator.compile( replacements, false );
    }
    catch ( Exception e ) {
      e.printStackTrace();
      throw e;
    }
    String oldsql = oldQueryTranslator.getSQLString();
    System.out.println( "HQL    : " + hql );
    System.out.println( "OLD SQL: " + oldsql );
  }
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    if ( replacements == null ) {
      replacements = new HashMap();
    }

    // steve -> note that the empty maps here represent the currently enabled filters...
    QueryTranslator oldQueryTranslator = null;
    Exception oldException = null;
    try {
      System.out.println("Compiling with classic QueryTranslator...");
      QueryTranslatorFactory classic = new ClassicQueryTranslatorFactory();
      oldQueryTranslator = classic.createQueryTranslator( hql, hql, Collections.EMPTY_MAP, factory );
      oldQueryTranslator.compile( replacements, scalar );
    }
    catch ( QueryException e ) {
      oldException = e;
    }
    catch ( MappingException e ) {
      oldException = e;
    }

    QueryTranslator newQueryTranslator = null;
    Exception newException = null;
    try {
      System.out.println("Compiling with AST QueryTranslator...");
      newQueryTranslator = createNewQueryTranslator( hql, replacements, scalar );
    }
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      assertTrue( "New query space does not contain " + o + "!", querySpaces.contains( o ) );
    }
  }

  protected Exception compileBadHql(String hql, boolean scalar) {
    QueryTranslator newQueryTranslator;
    Map replacements = null;
    Exception newException = null;
    SessionFactoryImplementor factory = getSessionFactoryImplementor();
    try {
      QueryTranslatorFactory ast = new ASTQueryTranslatorFactory();
      newQueryTranslator = ast.createQueryTranslator( hql, hql, Collections.EMPTY_MAP, factory );
      newQueryTranslator.compile( replacements, scalar );
    }
    catch ( QueryException e ) {
      newException = e;
    }
    catch ( MappingException e ) {
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    translator = createNewQueryTranslator( "select sum(h.bigDecimalValue) from Human h", sfi() );
    assertEquals( "incorrect return type count", 1, translator.getReturnTypes().length );
    assertEquals( "incorrect return type", Hibernate.BIG_DECIMAL, translator.getReturnTypes()[0] );

    // special case to test classicquery special case handling of count(*)
    QueryTranslator oldQueryTranslator = null;
    String hql = "select count(*) from Human h";
    QueryTranslatorFactory classic = new ClassicQueryTranslatorFactory();
    oldQueryTranslator = classic.createQueryTranslator( hql, hql, Collections.EMPTY_MAP, sfi() );
    oldQueryTranslator.compile( Collections.EMPTY_MAP, true);
    assertEquals( "incorrect return type count", 1, oldQueryTranslator.getReturnTypes().length );
    assertEquals( "incorrect return type", Hibernate.INTEGER, oldQueryTranslator.getReturnTypes()[0] );

  }
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  // Private

  private void assertEjbqlEqualsHql(String ejbql, String hql) {
    QueryTranslatorFactory ast = new ASTQueryTranslatorFactory();

    QueryTranslator queryTranslator = ast.createQueryTranslator( hql, hql, Collections.EMPTY_MAP, sfi() );
    queryTranslator.compile( Collections.EMPTY_MAP, true );
    String hqlSql = queryTranslator.getSQLString();

    queryTranslator = ast.createQueryTranslator( ejbql, ejbql, Collections.EMPTY_MAP, sfi() );
    queryTranslator.compile( Collections.EMPTY_MAP, true );
    String ejbqlSql = queryTranslator.getSQLString();

    assertEquals( hqlSql, ejbqlSql );
  }
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    assertEquals( hqlSql, ejbqlSql );
  }

  private QueryTranslatorImpl compile(String input) {
    QueryTranslatorFactory ast = new ASTQueryTranslatorFactory();
    QueryTranslator queryTranslator = ast.createQueryTranslator( input, input, Collections.EMPTY_MAP, sfi() );
    queryTranslator.compile( Collections.EMPTY_MAP, true );

    return ( QueryTranslatorImpl ) queryTranslator;
  }
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    return ast;
  }

  private String toSql(String hql) {
    QueryTranslatorFactory ast = new ASTQueryTranslatorFactory();
    QueryTranslator queryTranslator = ast.createQueryTranslator( hql, hql, Collections.EMPTY_MAP, sfi() );
    queryTranslator.compile( Collections.EMPTY_MAP, true );
    return queryTranslator.getSQLString();
  }
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    translator = createNewQueryTranslator( "select sum(h.bigDecimalValue) from Human h" );
    assertEquals( "incorrect return type count", 1, translator.getReturnTypes().length );
    assertEquals( "incorrect return type", Hibernate.BIG_DECIMAL, translator.getReturnTypes()[0] );

    // special case to test classicquery special case handling of count(*)
    QueryTranslator oldQueryTranslator = null;
    String hql = "select count(*) from Human h";
    QueryTranslatorFactory classic = new ClassicQueryTranslatorFactory();
    oldQueryTranslator = classic.createQueryTranslator( hql, hql, Collections.EMPTY_MAP, getSessionFactoryImplementor() );
    oldQueryTranslator.compile( Collections.EMPTY_MAP, true);
    assertEquals( "incorrect return type count", 1, oldQueryTranslator.getReturnTypes().length );
    assertEquals( "incorrect return type", Hibernate.LONG, oldQueryTranslator.getReturnTypes()[0] );

  }
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  private void compileWithAstQueryTranslator(String hql, boolean scalar) {
    Map replacements = new HashMap();
    QueryTranslatorFactory ast = new ASTQueryTranslatorFactory();
    SessionFactoryImplementor factory = getSessionFactoryImplementor();
    QueryTranslator newQueryTranslator = ast.createQueryTranslator( hql, hql, Collections.EMPTY_MAP, factory );
    newQueryTranslator.compile( replacements, scalar );
  }
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    Query hibQuery = session.createQuery(query);
    SessionFactory sessFact = session.getSessionFactory();
    SessionFactoryImplementor imple = (SessionFactoryImplementor) sessFact;
    ASTQueryTranslatorFactory factory = new ASTQueryTranslatorFactory();
    QueryTranslator trans = null;
    // Hibernate 3.0
    Class[] parsTypes = null;
   
    parsTypes = new Class[3];
   
    parsTypes[0] = String.class;
    parsTypes[1] = Map.class;
    parsTypes[2] = SessionFactoryImplementor.class;
   
    Method createQueryTranslatorMethod = null;
    try{
     
      createQueryTranslatorMethod = factory.getClass().getMethod("createQueryTranslator", parsTypes);
      try{
        trans = (QueryTranslator)createQueryTranslatorMethod.invoke(factory, new Object[]{hibQuery.getQueryString(), Collections.EMPTY_MAP, imple});
      }catch (Throwable e) {
        e.printStackTrace();
      }
    }catch (NoSuchMethodException e) {
     
      parsTypes = new Class[4];
     
      parsTypes[0] = String.class;
      parsTypes[1] = String.class;
      parsTypes[2] = Map.class;
      parsTypes[3] = SessionFactoryImplementor.class;
     
      try{
        createQueryTranslatorMethod = factory.getClass().getMethod("createQueryTranslator", parsTypes);
     
        if (createQueryTranslatorMethod != null){
          try{
            trans = (QueryTranslator)createQueryTranslatorMethod.invoke(factory, new Object[]{String.valueOf(System.currentTimeMillis()), hibQuery.getQueryString(),Collections.EMPTY_MAP, imple});
          }catch (Throwable t) {
            t.printStackTrace();
          }
        }
      }catch (NoSuchMethodException ex) {
        e.printStackTrace();
      }
    }
   
    trans.compile(new HashMap(), false);
    sqlQuery = trans.getSQLString();
   
    logger.debug("rewrite: generated SQL query: " + sqlQuery);   
   
    return sqlQuery;
  }
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Related Classes of org.hibernate.hql.QueryTranslator

  • it.eng.qbe.statement.hibernate.HQL2SQLStatementRewriter
  • org.hibernate.test.hql.CriteriaClassicAggregationReturnTest
  • org.hibernate.test.hql.CriteriaHQLAlignmentTest
  • org.hibernate.test.hql.EJBQLTest
  • org.hibernate.test.hql.HQLTest
  • org.hibernate.test.hql.QueryTranslatorTestCase
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