Package com.facebook.presto.spi

Examples of com.facebook.presto.spi.ConnectorTableMetadata

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    @Test
    public void getTableMetadata()
    {
        // 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"));
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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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    public Map<SchemaTableName, List<ColumnMetadata>> listTableColumns(ConnectorSession session, SchemaTablePrefix prefix)
    {
        checkNotNull(prefix, "prefix is null");
        ImmutableMap.Builder<SchemaTableName, List<ColumnMetadata>> columns = ImmutableMap.builder();
        for (SchemaTableName tableName : listTables(session, prefix)) {
            ConnectorTableMetadata tableMetadata = getTableMetadata(tableName);
            // table can disappear during listing operation
            if (tableMetadata != null) {
                columns.put(tableName, tableMetadata.getColumns());
            }
        }
        return columns.build();
    }
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        ExampleTable table = exampleClient.getTable(tableName.getSchemaName(), tableName.getTableName());
        if (table == null) {
            return null;
        }

        return new ConnectorTableMetadata(tableName, table.getColumnsMetadata());
    }
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    private ConnectorTableMetadata getTableMetadata(SchemaTableName tableName)
    {
        CassandraTableHandle tableHandle = schemaProvider.getTableHandle(tableName);
        CassandraTable table = schemaProvider.getTable(tableHandle);
        List<ColumnMetadata> columns = ImmutableList.copyOf(transform(table.getColumns(), columnMetadataGetter()));
        return new ConnectorTableMetadata(tableName, columns);
    }
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    private ConnectorTableMetadata getTableMetadata(SchemaTableName tableName)
    {
        CassandraTableHandle tableHandle = schemaProvider.getTableHandle(tableName);
        List<ColumnMetadata> columns = ImmutableList.copyOf(transform(getColumnHandles(tableHandle).values(), columnMetadataGetter()));
        return new ConnectorTableMetadata(tableName, columns);
    }
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    private ConnectorTableMetadata getTableMetadata(SchemaTableName tableName)
    {
        try {
            Table table = metastore.getTable(tableName.getSchemaName(), tableName.getTableName());
            List<ColumnMetadata> columns = ImmutableList.copyOf(transform(getColumnHandles(table, false), columnMetadataGetter()));
            return new ConnectorTableMetadata(tableName, columns, table.getOwner());
        }
        catch (NoSuchObjectException e) {
            throw new TableNotFoundException(tableName);
        }
    }
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    }

    @Override
    public TableMetadata getTableMetadata(TableHandle tableHandle)
    {
        ConnectorTableMetadata tableMetadata = lookupConnectorFor(tableHandle).getMetadata().getTableMetadata(tableHandle);
        return new TableMetadata(getConnectorId(tableHandle), tableMetadata);
    }
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    @Test
    public void getTableMetadata()
    {
        // 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")));
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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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Related Classes of com.facebook.presto.spi.ConnectorTableMetadata

  • com.facebook.presto.cassandra.CassandraMetadata
  • com.facebook.presto.cassandra.TestCassandraConnector
  • com.facebook.presto.connector.dual.DualMetadata
  • com.facebook.presto.connector.informationSchema.InformationSchemaMetadata
  • com.facebook.presto.connector.jmx.JmxTableHandle
  • com.facebook.presto.connector.system.SystemTablesMetadata
  • com.facebook.presto.example.ExampleMetadata
  • com.facebook.presto.example.TestExampleMetadata
  • com.facebook.presto.hive.AbstractTestHiveClient
  • com.facebook.presto.hive.AbstractTestHiveClientS3
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