/**
   * Get a {@link PagingQueryProvider} instance using the provided properties and appropriate for
   * the given database type.
   *
   * @see FactoryBean#getObject()
   */
  @Override
  public PagingQueryProvider getObject() throws Exception {

    DatabaseType type;
    try {
      type =
          databaseType != null
              ? DatabaseType.valueOf(databaseType.toUpperCase())
              : DatabaseType.fromMetaData(dataSource);
    } catch (MetaDataAccessException e) {
      throw new IllegalArgumentException(
          "Could not inspect meta data for database type.  You have to supply it explicitly.", e);
    }

    AbstractSqlPagingQueryProvider provider = providers.get(type);
    Assert.state(
        provider != null,
        "Should not happen: missing PagingQueryProvider for DatabaseType=" + type);

    provider.setFromClause(fromClause);
    provider.setWhereClause(whereClause);
    provider.setSortKeys(sortKeys);
    if (StringUtils.hasText(selectClause)) {
      provider.setSelectClause(selectClause);
    }
    if (StringUtils.hasText(groupClause)) {
      provider.setGroupClause(groupClause);
    }

    provider.init(dataSource);

    return provider;
  }
 @PostConstruct
 protected void initialize() throws Exception {
   String platform = DatabaseType.fromMetaData(this.dataSource).toString().toLowerCase();
   if ("hsql".equals(platform)) {
     platform = "hsqldb";
   }
   ResourceDatabasePopulator populator = new ResourceDatabasePopulator();
   populator.addScript(
       this.resourceLoader.getResource(this.schemaLocation.replace("@@platform@@", platform)));
   populator.setContinueOnError(true);
   DatabasePopulatorUtils.execute(populator, this.dataSource);
 }
Example #3
0
 static {
   nameMap = new HashMap<String, DatabaseType>();
   for (DatabaseType type : values()) {
     nameMap.put(type.getProductName(), type);
   }
 }