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Java RelDataTypeSystem类代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了Java中org.apache.calcite.rel.type.RelDataTypeSystem类的典型用法代码示例。如果您正苦于以下问题：Java RelDataTypeSystem类的具体用法？Java RelDataTypeSystem怎么用？Java RelDataTypeSystem使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。



RelDataTypeSystem类属于org.apache.calcite.rel.type包，在下文中一共展示了RelDataTypeSystem类的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的Java代码示例。

示例1: getColumnList

import org.apache.calcite.rel.type.RelDataTypeSystem; //导入依赖的package包/类
public List<String> getColumnList(final String username, DatasetPath path) {
  final SchemaConfig schemaConfig = SchemaConfig.newBuilder(username)
      .setProvider(new SchemaInfoProvider() {
        private final ViewExpansionContext viewExpansionContext = new ViewExpansionContext(this, schemaProvider, username);

        @Override
        public ViewExpansionContext getViewExpansionContext() {
          return viewExpansionContext;
        }

        @Override
        public OptionValue getOption(String optionKey) {
          throw new UnsupportedOperationException();
        }
      })
      .build();
  final SchemaPlus schema = schemaProvider.getRootSchema(schemaConfig);
  final Table table = path.getTable(schema);
  return table.getRowType(new SqlTypeFactoryImpl(RelDataTypeSystem.DEFAULT)).getFieldNames();
}
开发者ID:dremio，项目名称:dremio-oss，代码行数:21，代码来源:QueryExecutor.java


示例2: CalciteConnectionImpl

import org.apache.calcite.rel.type.RelDataTypeSystem; //导入依赖的package包/类
/**
 * Creates a CalciteConnectionImpl.
 * <p/>
 * <p>Not public; method is called only from the driver.</p>
 *
 * @param driver      Driver
 * @param factory     Factory for JDBC objects
 * @param url         Server URL
 * @param info        Other connection properties
 * @param rootSchema  Root schema, or null
 * @param typeFactory Type factory, or null
 */
protected CalciteConnectionImpl(Driver driver, AvaticaFactory factory,
                                String url, Properties info, CalciteSchema rootSchema,
                                JavaTypeFactory typeFactory) {
    super(driver, factory, url, info);
    CalciteConnectionConfig cfg = new CalciteConnectionConfigImpl(info);
    this.prepareFactory = driver.getPrepareFactory();
    if (typeFactory != null) {
        this.typeFactory = typeFactory;
    } else {
        final RelDataTypeSystem typeSystem =
                cfg.typeSystem(RelDataTypeSystem.class, RelDataTypeSystem.DEFAULT);
        this.typeFactory = new JavaTypeFactoryImpl(typeSystem);
    }
    this.rootSchema =
            Preconditions.checkNotNull(rootSchema != null
                    ? rootSchema
                    : CalciteSchema.createRootSchema(true));
    Preconditions.checkArgument(this.rootSchema.isRoot(), "must be root schema");
    this.properties.put(InternalProperty.CASE_SENSITIVE, cfg.caseSensitive());
    this.properties.put(InternalProperty.UNQUOTED_CASING, cfg.unquotedCasing());
    this.properties.put(InternalProperty.QUOTED_CASING, cfg.quotedCasing());
    this.properties.put(InternalProperty.QUOTING, cfg.quoting());
}
开发者ID:bitnine-oss，项目名称:octopus，代码行数:36，代码来源:CalciteConnectionImpl.java


示例3: OctopusTable

import org.apache.calcite.rel.type.RelDataTypeSystem; //导入依赖的package包/类
public OctopusTable(MetaTable metaTable, OctopusSchema schema) {
    super(Object[].class);
    name = metaTable.getName();

    try {
        //tableType = Schema.TableType.valueOf(table.getType().name());
        tableType = Schema.TableType.TABLE; // FIXME
    } catch (IllegalArgumentException e) {
        tableType = Schema.TableType.TABLE;
    }

    RelDataTypeFactory typeFactory = new SqlTypeFactoryImpl(RelDataTypeSystem.DEFAULT);
    RelDataTypeFactory.FieldInfoBuilder fieldInfo = typeFactory.builder();
    for (MetaColumn metaColumn : metaTable.getColumns()) {
        String columnName = metaColumn.getName();
        //int jdbcType = metaColumn.getType().getJdbcType();
        int jdbcType = metaColumn.getType(); //FIXME
        SqlTypeName typeName = SqlTypeName.getNameForJdbcType(jdbcType);
        RelDataType sqlType = typeFactory.createSqlType(typeName);

        fieldInfo.add(columnName, sqlType);
    }
    protoRowType = RelDataTypeImpl.proto(fieldInfo.build());

    this.schema = schema;
}
开发者ID:bitnine-oss，项目名称:octopus，代码行数:27，代码来源:OctopusTable.java


示例4: QuarkConnectionImpl

import org.apache.calcite.rel.type.RelDataTypeSystem; //导入依赖的package包/类
protected QuarkConnectionImpl(QuarkDriver driver, AvaticaFactory factory, String url,
                              Properties info, CalciteRootSchema rootSchema,
                              JavaTypeFactory typeFactory) throws SQLException {
  super(driver, factory, url, info);

  CalciteConnectionConfig cfg = new CalciteConnectionConfigImpl(info);

  if (typeFactory != null) {
    this.typeFactory = typeFactory;
  } else {
    final RelDataTypeSystem typeSystem =
        cfg.typeSystem(RelDataTypeSystem.class, RelDataTypeSystem.DEFAULT);
    this.typeFactory = new JavaTypeFactoryImpl(typeSystem);
  }

  this.properties.put(InternalProperty.CASE_SENSITIVE, cfg.caseSensitive());
  this.properties.put(InternalProperty.UNQUOTED_CASING, cfg.unquotedCasing());
  this.properties.put(InternalProperty.QUOTED_CASING, cfg.quotedCasing());
  this.properties.put(InternalProperty.QUOTING, cfg.quoting());
}
开发者ID:qubole，项目名称:quark，代码行数:21，代码来源:QuarkConnectionImpl.java


示例5: getAllDefaultType

import org.apache.calcite.rel.type.RelDataTypeSystem; //导入依赖的package包/类
private ImmutableList<MetaTypeInfo> getAllDefaultType() {
  final ImmutableList.Builder<MetaTypeInfo> allTypeList =
      new ImmutableList.Builder<>();
  final RelDataTypeSystem typeSystem = getConnection().getTypeFactory().getTypeSystem();
  for (SqlTypeName sqlTypeName : SqlTypeName.values()) {
    allTypeList.add(
        new MetaTypeInfo(sqlTypeName.getName(),
            sqlTypeName.getJdbcOrdinal(),
            typeSystem.getMaxPrecision(sqlTypeName),
            typeSystem.getLiteral(sqlTypeName, true),
            typeSystem.getLiteral(sqlTypeName, false),
            // All types are nullable
            (short) DatabaseMetaData.typeNullable,
            typeSystem.isCaseSensitive(sqlTypeName),
            // Making all type searchable; we may want to
            // be specific and declare under SqlTypeName
            (short) DatabaseMetaData.typeSearchable,
            false,
            false,
            typeSystem.isAutoincrement(sqlTypeName),
            (short) sqlTypeName.getMinScale(),
            (short) typeSystem.getMaxScale(sqlTypeName),
            typeSystem.getNumTypeRadix(sqlTypeName)));
  }
  return allTypeList.build();
}
开发者ID:qubole，项目名称:quark，代码行数:27，代码来源:QuarkMetaImpl.java


示例6: buildPlanner

import org.apache.calcite.rel.type.RelDataTypeSystem; //导入依赖的package包/类
private Planner buildPlanner(QueryContext context) {
  final List<RelTraitDef> traitDefs = new ArrayList<RelTraitDef>();
  traitDefs.add(ConventionTraitDef.INSTANCE);
  traitDefs.add(RelCollationTraitDef.INSTANCE);
  final ChainedSqlOperatorTable opTab =
      new ChainedSqlOperatorTable(
          ImmutableList.of(SqlStdOperatorTable.instance(),
              HiveSqlOperatorTable.instance(), catalogReader));
  FrameworkConfig config = Frameworks.newConfigBuilder() //
      .parserConfig(SqlParser.configBuilder()
          .setQuotedCasing(Casing.UNCHANGED)
          .setUnquotedCasing(Casing.TO_UPPER)
          .setQuoting(Quoting.DOUBLE_QUOTE)
          .build()) //
      .defaultSchema(context.getDefaultSchema()) //
      .operatorTable(opTab) //
      .traitDefs(traitDefs) //
      .convertletTable(StandardConvertletTable.INSTANCE)//
      .programs(getPrograms()) //
      .typeSystem(RelDataTypeSystem.DEFAULT) //
      .build();
  return Frameworks.getPlanner(config);
}
开发者ID:qubole，项目名称:quark，代码行数:24，代码来源:SqlWorker.java


示例7: CalciteConnectionImpl

import org.apache.calcite.rel.type.RelDataTypeSystem; //导入依赖的package包/类
/**
 * Creates a CalciteConnectionImpl.
 *
 * <p>Not public; method is called only from the driver.</p>
 *
 * @param driver Driver
 * @param factory Factory for JDBC objects
 * @param url Server URL
 * @param info Other connection properties
 * @param rootSchema Root schema, or null
 * @param typeFactory Type factory, or null
 */
protected CalciteConnectionImpl(Driver driver, AvaticaFactory factory,
    String url, Properties info, CalciteSchema rootSchema,
    JavaTypeFactory typeFactory) {
  super(driver, factory, url, info);
  CalciteConnectionConfig cfg = new CalciteConnectionConfigImpl(info);
  this.prepareFactory = driver.prepareFactory;
  if (typeFactory != null) {
    this.typeFactory = typeFactory;
  } else {
    final RelDataTypeSystem typeSystem =
        cfg.typeSystem(RelDataTypeSystem.class, RelDataTypeSystem.DEFAULT);
    this.typeFactory = new JavaTypeFactoryImpl(typeSystem);
  }
  this.rootSchema =
      Preconditions.checkNotNull(rootSchema != null
          ? rootSchema
          : CalciteSchema.createRootSchema(true));
  Preconditions.checkArgument(this.rootSchema.isRoot(), "must be root schema");
  this.properties.put(InternalProperty.CASE_SENSITIVE, cfg.caseSensitive());
  this.properties.put(InternalProperty.UNQUOTED_CASING, cfg.unquotedCasing());
  this.properties.put(InternalProperty.QUOTED_CASING, cfg.quotedCasing());
  this.properties.put(InternalProperty.QUOTING, cfg.quoting());
}
开发者ID:apache，项目名称:calcite，代码行数:36，代码来源:CalciteConnectionImpl.java


示例8: operatorTable

import org.apache.calcite.rel.type.RelDataTypeSystem; //导入依赖的package包/类
/** Creates an operator table that contains functions in the given class.
 *
 * @see ModelHandler#addFunctions */
public static SqlOperatorTable operatorTable(String className) {
  // Dummy schema to collect the functions
  final CalciteSchema schema =
      CalciteSchema.createRootSchema(false, false);
  ModelHandler.addFunctions(schema.plus(), null, ImmutableList.<String>of(),
      className, "*", true);

  // The following is technical debt; see [CALCITE-2082] Remove
  // RelDataTypeFactory argument from SqlUserDefinedAggFunction constructor
  final SqlTypeFactoryImpl typeFactory =
      new SqlTypeFactoryImpl(RelDataTypeSystem.DEFAULT);

  final ListSqlOperatorTable table = new ListSqlOperatorTable();
  for (String name : schema.getFunctionNames()) {
    for (Function function : schema.getFunctions(name, true)) {
      final SqlIdentifier id = new SqlIdentifier(name, SqlParserPos.ZERO);
      table.add(
          toOp(typeFactory, id, function));
    }
  }
  return table;
}
开发者ID:apache，项目名称:calcite，代码行数:26，代码来源:CalciteCatalogReader.java


示例9: withPrepare

import org.apache.calcite.rel.type.RelDataTypeSystem; //导入依赖的package包/类
/**
 * Initializes a container then calls user-specified code with a planner
 * and statement.
 *
 * @param action Callback containing user-specified code
 * @return Return value from action
 */
public static <R> R withPrepare(PrepareAction<R> action) {
  try {
    final Properties info = new Properties();
    if (action.config.getTypeSystem() != RelDataTypeSystem.DEFAULT) {
      info.setProperty(CalciteConnectionProperty.TYPE_SYSTEM.camelName(),
          action.config.getTypeSystem().getClass().getName());
    }
    Connection connection =
        DriverManager.getConnection("jdbc:calcite:", info);
    final CalciteServerStatement statement =
        connection.createStatement()
            .unwrap(CalciteServerStatement.class);
    return new CalcitePrepareImpl().perform(statement, action);
  } catch (Exception e) {
    throw new RuntimeException(e);
  }
}
开发者ID:apache，项目名称:calcite，代码行数:25，代码来源:Frameworks.java


示例10: StdFrameworkConfig

import org.apache.calcite.rel.type.RelDataTypeSystem; //导入依赖的package包/类
StdFrameworkConfig(Context context,
    SqlRexConvertletTable convertletTable,
    SqlOperatorTable operatorTable,
    ImmutableList<Program> programs,
    ImmutableList<RelTraitDef> traitDefs,
    SqlParser.Config parserConfig,
    SqlToRelConverter.Config sqlToRelConverterConfig,
    SchemaPlus defaultSchema,
    RelOptCostFactory costFactory,
    RelDataTypeSystem typeSystem,
    RexExecutor executor) {
  this.context = context;
  this.convertletTable = convertletTable;
  this.operatorTable = operatorTable;
  this.programs = programs;
  this.traitDefs = traitDefs;
  this.parserConfig = parserConfig;
  this.sqlToRelConverterConfig = sqlToRelConverterConfig;
  this.defaultSchema = defaultSchema;
  this.costFactory = costFactory;
  this.typeSystem = typeSystem;
  this.executor = executor;
}
开发者ID:apache，项目名称:calcite，代码行数:24，代码来源:Frameworks.java


示例11: setUp

import org.apache.calcite.rel.type.RelDataTypeSystem; //导入依赖的package包/类
@Before public void setUp() {
  typeFactory = new JavaTypeFactoryImpl(RelDataTypeSystem.DEFAULT);
  rexBuilder = new RexBuilder(typeFactory);
  boolRelDataType = typeFactory.createSqlType(SqlTypeName.BOOLEAN);

  x = new RexInputRef(
      0,
      typeFactory.createTypeWithNullability(boolRelDataType, true));
  y = new RexInputRef(
      1,
      typeFactory.createTypeWithNullability(boolRelDataType, true));
  z = new RexInputRef(
      2,
      typeFactory.createTypeWithNullability(boolRelDataType, true));
  trueRex = rexBuilder.makeLiteral(true);
  falseRex = rexBuilder.makeLiteral(false);
}
开发者ID:apache，项目名称:calcite，代码行数:18，代码来源:RexTransformerTest.java


示例12: testDateLiteral

import org.apache.calcite.rel.type.RelDataTypeSystem; //导入依赖的package包/类
/** Tests {@link RexBuilder#makeDateLiteral(DateString)}. */
@Test public void testDateLiteral() {
  final RelDataTypeFactory typeFactory =
      new SqlTypeFactoryImpl(RelDataTypeSystem.DEFAULT);
  RelDataType dateType = typeFactory.createSqlType(SqlTypeName.DATE);
  final RexBuilder builder = new RexBuilder(typeFactory);

  // Old way: provide a Calendar
  final Calendar calendar = Util.calendar();
  calendar.set(1969, Calendar.JULY, 21); // one small step
  calendar.set(Calendar.MILLISECOND, 0);
  checkDate(builder.makeLiteral(calendar, dateType, false));

  // Old way #2: Provide in Integer
  checkDate(builder.makeLiteral(MOON_DAY, dateType, false));

  // The new way
  final DateString d = new DateString(1969, 7, 21);
  checkDate(builder.makeLiteral(d, dateType, false));
}
开发者ID:apache，项目名称:calcite，代码行数:21，代码来源:RexBuilderTest.java


示例13: getRelDataType

import org.apache.calcite.rel.type.RelDataTypeSystem; //导入依赖的package包/类
@Override
RelProtoDataType getRelDataType(
		DatabaseMetaData metaData,
		String catalogName,
		String schemaName,
		String tableName
) throws SQLException {
	if (journalledTableKeys.containsKey(tableName)) {
		// 1: Find columns for journal table
		RelDataType relDataType = super
				.getRelDataType(metaData, catalogName, schemaName, journalNameFor(tableName))
				.apply(new SqlTypeFactoryImpl(RelDataTypeSystem.DEFAULT) {
					@Override
					public RelDataType copyType(RelDataType type) {
						return type;
					}
				});

		RelDataTypeFactory.FieldInfoBuilder fieldInfo = new SqlTypeFactoryImpl(RelDataTypeSystem.DEFAULT).builder();

		// 2: Filter out journal-implementation columns
		for (RelDataTypeField field : relDataType.getFieldList()) {
			String fieldName = field.getName();
			if (fieldName.equals(versionField) || fieldName.equals(subsequentVersionField)) {
				continue;
			}
			fieldInfo.add(field);
		}

		return RelDataTypeImpl.proto(fieldInfo.build());
	} else {
		return super.getRelDataType(metaData, catalogName, schemaName, tableName);
	}
}
开发者ID:tzolov，项目名称:calcite-sql-rewriter，代码行数:35，代码来源:JournalledJdbcSchema.java


示例14: setup

import org.apache.calcite.rel.type.RelDataTypeSystem; //导入依赖的package包/类
@Before
public void setup() {
  MockitoAnnotations.initMocks(this);

  final VolcanoPlanner planner = new VolcanoPlanner();
  typeFactory = new SqlTypeFactoryImpl(RelDataTypeSystem.DEFAULT);
  RelOptCluster cluster = RelOptCluster.create(planner, new RexBuilder(typeFactory));
  builder = DremioRelFactories.LOGICAL_BUILDER.create(cluster, schema);
}
开发者ID:dremio，项目名称:dremio-oss，代码行数:10，代码来源:TestLayoutExpander.java


示例15: encodeAndDecode

import org.apache.calcite.rel.type.RelDataTypeSystem; //导入依赖的package包/类
@Test
public void encodeAndDecode() throws Exception {
  final RelProtoDataType protoRowType = new RelProtoDataType() {
    @Override
    public RelDataType apply(RelDataTypeFactory a0) {
      return a0.builder()
          .add("col_tinyint", SqlTypeName.TINYINT)
          .add("col_smallint", SqlTypeName.SMALLINT)
          .add("col_integer", SqlTypeName.INTEGER)
          .add("col_bigint", SqlTypeName.BIGINT)
          .add("col_float", SqlTypeName.FLOAT)
          .add("col_double", SqlTypeName.DOUBLE)
          .add("col_decimal", SqlTypeName.DECIMAL)
          .add("col_string_varchar", SqlTypeName.VARCHAR)
          .add("col_time", SqlTypeName.TIME)
          .add("col_timestamp", SqlTypeName.TIMESTAMP)
          .add("col_boolean", SqlTypeName.BOOLEAN)
          .build();
    }
  };

  BeamRecordSqlType beamSQLRowType = CalciteUtils.toBeamRowType(
      protoRowType.apply(new JavaTypeFactoryImpl(
          RelDataTypeSystem.DEFAULT)));

  GregorianCalendar calendar = new GregorianCalendar();
  calendar.setTime(new Date());
  BeamRecord row = new BeamRecord(beamSQLRowType
      , Byte.valueOf("1"), Short.valueOf("1"), 1, 1L, 1.1F, 1.1
      , BigDecimal.ZERO, "hello", calendar, new Date(), true);


  BeamRecordCoder coder = beamSQLRowType.getRecordCoder();
  CoderProperties.coderDecodeEncodeEqual(coder, row);
}
开发者ID:apache，项目名称:beam，代码行数:36，代码来源:BeamSqlRowCoderTest.java


示例16: getAllDefaultType

import org.apache.calcite.rel.type.RelDataTypeSystem; //导入依赖的package包/类
private ImmutableList<MetaTypeInfo> getAllDefaultType() {
    final ImmutableList.Builder<MetaTypeInfo> allTypeList =
            new ImmutableList.Builder<>();
    final CalciteConnectionImpl conn = (CalciteConnectionImpl) connection;
    final RelDataTypeSystem typeSystem = conn.getTypeFactory().getTypeSystem();
    for (SqlTypeName sqlTypeName : SqlTypeName.values()) {
        allTypeList.add(
                new MetaTypeInfo(sqlTypeName.getName(),
                        sqlTypeName.getJdbcOrdinal(),
                        typeSystem.getMaxPrecision(sqlTypeName),
                        typeSystem.getLiteral(sqlTypeName, true),
                        typeSystem.getLiteral(sqlTypeName, false),
                        // All types are nullable
                        DatabaseMetaData.typeNullable,
                        typeSystem.isCaseSensitive(sqlTypeName),
                        // Making all type searchable; we may want to
                        // be specific and declare under SqlTypeName
                        DatabaseMetaData.typeSearchable,
                        false,
                        false,
                        typeSystem.isAutoincrement(sqlTypeName),
                        sqlTypeName.getMinScale(),
                        typeSystem.getMaxScale(sqlTypeName),
                        typeSystem.getNumTypeRadix(sqlTypeName)));
    }
    return allTypeList.build();
}
开发者ID:bitnine-oss，项目名称:octopus，代码行数:28，代码来源:CalciteMetaImpl.java


示例17: sqlOverDummyTable

import org.apache.calcite.rel.type.RelDataTypeSystem; //导入依赖的package包/类
public static CalciteState sqlOverDummyTable(String sql)
        throws RelConversionException, ValidationException, SqlParseException {
    SchemaPlus schema = Frameworks.createRootSchema(true);
    JavaTypeFactory typeFactory = new JavaTypeFactoryImpl
            (RelDataTypeSystem.DEFAULT);
    StreamableTable streamableTable = new CompilerUtil.TableBuilderInfo(typeFactory)
            .field("ID", SqlTypeName.INTEGER)
            .field("NAME", typeFactory.createType(String.class))
            .field("ADDR", typeFactory.createType(String.class))
            .build();
    Table table = streamableTable.stream();
    schema.add("FOO", table);
    schema.add("BAR", table);
    schema.add("MYPLUS", ScalarFunctionImpl.create(MyPlus.class, "eval"));

    List<SqlOperatorTable> sqlOperatorTables = new ArrayList<>();
    sqlOperatorTables.add(SqlStdOperatorTable.instance());
    sqlOperatorTables.add(new CalciteCatalogReader(CalciteSchema.from(schema),
            false,
            Collections.<String>emptyList(), typeFactory));
    SqlOperatorTable chainedSqlOperatorTable = new ChainedSqlOperatorTable(sqlOperatorTables);
    FrameworkConfig config = Frameworks.newConfigBuilder().defaultSchema(
            schema).operatorTable(chainedSqlOperatorTable).build();
    Planner planner = Frameworks.getPlanner(config);
    SqlNode parse = planner.parse(sql);
    SqlNode validate = planner.validate(parse);
    RelNode tree = planner.convert(validate);
    System.out.println(RelOptUtil.toString(tree, SqlExplainLevel.ALL_ATTRIBUTES));
    return new CalciteState(schema, tree);
}
开发者ID:hortonworks，项目名称:streamline，代码行数:31，代码来源:TestCompilerUtils.java


示例18: CassandraEnumerator

import org.apache.calcite.rel.type.RelDataTypeSystem; //导入依赖的package包/类
/** Creates a CassandraEnumerator.
 *
 * @param results Cassandra result set ({@link com.datastax.driver.core.ResultSet})
 * @param protoRowType The type of resulting rows
 */
CassandraEnumerator(ResultSet results, RelProtoDataType protoRowType) {
  this.iterator = results.iterator();
  this.current = null;

  final RelDataTypeFactory typeFactory =
      new SqlTypeFactoryImpl(RelDataTypeSystem.DEFAULT);
  this.fieldTypes = protoRowType.apply(typeFactory).getFieldList();
}
开发者ID:apache，项目名称:calcite，代码行数:14，代码来源:CassandraEnumerator.java


示例19: getAllDefaultType

import org.apache.calcite.rel.type.RelDataTypeSystem; //导入依赖的package包/类
private ImmutableList<MetaTypeInfo> getAllDefaultType() {
  final ImmutableList.Builder<MetaTypeInfo> allTypeList =
      ImmutableList.builder();
  final CalciteConnectionImpl conn = (CalciteConnectionImpl) connection;
  final RelDataTypeSystem typeSystem = conn.typeFactory.getTypeSystem();
  for (SqlTypeName sqlTypeName : SqlTypeName.values()) {
    allTypeList.add(
        new MetaTypeInfo(sqlTypeName.getName(),
            sqlTypeName.getJdbcOrdinal(),
            typeSystem.getMaxPrecision(sqlTypeName),
            typeSystem.getLiteral(sqlTypeName, true),
            typeSystem.getLiteral(sqlTypeName, false),
            // All types are nullable
            (short) DatabaseMetaData.typeNullable,
            typeSystem.isCaseSensitive(sqlTypeName),
            // Making all type searchable; we may want to
            // be specific and declare under SqlTypeName
            (short) DatabaseMetaData.typeSearchable,
            false,
            false,
            typeSystem.isAutoincrement(sqlTypeName),
            (short) sqlTypeName.getMinScale(),
            (short) typeSystem.getMaxScale(sqlTypeName),
            typeSystem.getNumTypeRadix(sqlTypeName)));
  }
  return allTypeList.build();
}
开发者ID:apache，项目名称:calcite，代码行数:28，代码来源:CalciteMetaImpl.java


示例20: getRelDataType

import org.apache.calcite.rel.type.RelDataTypeSystem; //导入依赖的package包/类
RelProtoDataType getRelDataType(DatabaseMetaData metaData, String catalogName,
    String schemaName, String tableName) throws SQLException {
  final ResultSet resultSet =
      metaData.getColumns(catalogName, schemaName, tableName, null);

  // Temporary type factory, just for the duration of this method. Allowable
  // because we're creating a proto-type, not a type; before being used, the
  // proto-type will be copied into a real type factory.
  final RelDataTypeFactory typeFactory =
      new SqlTypeFactoryImpl(RelDataTypeSystem.DEFAULT);
  final RelDataTypeFactory.Builder fieldInfo = typeFactory.builder();
  while (resultSet.next()) {
    final String columnName = resultSet.getString(4);
    final int dataType = resultSet.getInt(5);
    final String typeString = resultSet.getString(6);
    final int precision;
    final int scale;
    switch (SqlType.valueOf(dataType)) {
    case TIMESTAMP:
    case TIME:
      precision = resultSet.getInt(9); // SCALE
      scale = 0;
      break;
    default:
      precision = resultSet.getInt(7); // SIZE
      scale = resultSet.getInt(9); // SCALE
      break;
    }
    RelDataType sqlType =
        sqlType(typeFactory, dataType, precision, scale, typeString);
    boolean nullable = resultSet.getInt(11) != DatabaseMetaData.columnNoNulls;
    fieldInfo.add(columnName, sqlType).nullable(nullable);
  }
  resultSet.close();
  return RelDataTypeImpl.proto(fieldInfo.build());
}
开发者ID:apache，项目名称:calcite，代码行数:37，代码来源:JdbcSchema.java



注：本文中的org.apache.calcite.rel.type.RelDataTypeSystem类示例整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。

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