Package com.facebook.presto.spi

Examples of com.facebook.presto.spi.ColumnMetadata

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                    batch.execute();
                    return;
                }
                PreparedBatchPart part = batch.add();
                for (int column = 0; column < tableMetadata.getColumns().size(); column++) {
                    ColumnMetadata columnMetadata = tableMetadata.getColumns().get(column);
                    switch (columnMetadata.getType()) {
                        case BOOLEAN:
                            part.bind(column, cursor.getBoolean(column));
                            break;
                        case LONG:
                            part.bind(column, cursor.getLong(column));
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    {
        // known table
        ConnectorTableMetadata tableMetadata = metadata.getTableMetadata(tableHandle);
        assertEquals(tableMetadata.getTable(), new SchemaTableName("example", "numbers"));
        assertEquals(tableMetadata.getColumns(), ImmutableList.of(
                new ColumnMetadata("text", VARCHAR, 0, false),
                new ColumnMetadata("value", BIGINT, 1, false)));

        // unknown tables should produce null
        unknownTableMetadata(new JdbcTableHandle(CONNECTOR_ID, new SchemaTableName("u", "numbers"), null, "unknown", "unknown"));
        unknownTableMetadata(new JdbcTableHandle(CONNECTOR_ID, new SchemaTableName("example", "numbers"), null, "example", "unknown"));
        unknownTableMetadata(new JdbcTableHandle(CONNECTOR_ID, new SchemaTableName("example", "numbers"), null, "unknown", "numbers"));
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    @Test
    public void getColumnMetadata()
    {
        assertEquals(
                metadata.getColumnMetadata(tableHandle, new JdbcColumnHandle(CONNECTOR_ID, "text", VARCHAR, 0)),
                new ColumnMetadata("text", VARCHAR, 0, false));
    }
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    @Test(expectedExceptions = UnsupportedOperationException.class)
    public void testCreateTable()
    {
        metadata.createTable(SESSION, new ConnectorTableMetadata(
                new SchemaTableName("example", "foo"),
                ImmutableList.of(new ColumnMetadata("text", VARCHAR, 0, false))));
    }
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        return partitionKey;
    }

    public ColumnMetadata getColumnMetadata()
    {
        return new ColumnMetadata(name, hiveType.getNativeType(), ordinalPosition, partitionKey);
    }
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    {
        // known table
        ConnectorTableMetadata tableMetadata = metadata.getTableMetadata(NUMBERS_TABLE_HANDLE);
        assertEquals(tableMetadata.getTable(), new SchemaTableName("example", "numbers"));
        assertEquals(tableMetadata.getColumns(), ImmutableList.of(
                new ColumnMetadata("text", VARCHAR, 0, false),
                new ColumnMetadata("value", BIGINT, 1, false)));

        // unknown tables should produce null
        assertNull(metadata.getTableMetadata(new ExampleTableHandle(CONNECTOR_ID, "unknown", "unknown")));
        assertNull(metadata.getTableMetadata(new ExampleTableHandle(CONNECTOR_ID, "example", "unknown")));
        assertNull(metadata.getTableMetadata(new ExampleTableHandle(CONNECTOR_ID, "unknown", "numbers")));
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    @Test
    public void getColumnMetadata()
    {
        assertEquals(metadata.getColumnMetadata(NUMBERS_TABLE_HANDLE, new ExampleColumnHandle(CONNECTOR_ID, "text", VARCHAR, 0)),
                new ColumnMetadata("text", VARCHAR, 0, false));

        // example connector assumes that the table handle and column handle are
        // properly formed, so it will return a metadata object for any
        // ExampleTableHandle and ExampleColumnHandle passed in.  This is on because
        // it is not possible for the Presto Metadata system to create the handles
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    @Test(expectedExceptions = UnsupportedOperationException.class)
    public void testCreateTable()
    {
        metadata.createTable(SESSION, new ConnectorTableMetadata(
                new SchemaTableName("example", "foo"),
                ImmutableList.of(new ColumnMetadata("text", VARCHAR, 0, false))));
    }
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        ConnectorColumnHandle columnHandle = metadata.getColumnHandles(tableHandle).get("orderkey");
        assertInstanceOf(columnHandle, RaptorColumnHandle.class);
        assertEquals(((RaptorColumnHandle) columnHandle).getColumnId(), 1);

        ColumnMetadata columnMetadata = metadata.getColumnMetadata(tableHandle, columnHandle);
        assertNotNull(columnMetadata);
        assertEquals(columnMetadata.getName(), "orderkey");
        assertEquals(columnMetadata.getType(), BIGINT);
        assertEquals(columnMetadata.getOrdinalPosition(), 0);
    }
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        List<ColumnMetadata> actualColumns = actual.getColumns();
        List<ColumnMetadata> expectedColumns = expected.getColumns();
        assertEquals(actualColumns.size(), expectedColumns.size());
        for (int i = 0; i < actualColumns.size(); i++) {
            ColumnMetadata actualColumn = actualColumns.get(i);
            ColumnMetadata expectedColumn = expectedColumns.get(i);
            assertEquals(actualColumn.getName(), expectedColumn.getName());
            assertEquals(actualColumn.getType(), expectedColumn.getType());
        }
    }
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Related Classes of com.facebook.presto.spi.ColumnMetadata

  • com.facebook.presto.AbstractTestQueries
  • com.facebook.presto.cassandra.CassandraColumnHandle
  • com.facebook.presto.cassandra.TestCassandraConnector
  • com.facebook.presto.connector.informationSchema.InformationSchemaDataStreamProvider
  • com.facebook.presto.connector.informationSchema.InformationSchemaMetadata
  • com.facebook.presto.connector.informationSchema.InformationSchemaPageSourceProvider
  • com.facebook.presto.connector.jmx.JmxColumnHandle
  • com.facebook.presto.connector.system.SystemDataStreamProvider
  • com.facebook.presto.connector.system.SystemRecordSetProvider
  • com.facebook.presto.connector.system.SystemTablesMetadata
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