Package com.illumon.iris.db.v2.locations.parquet.metadata

Class TableInfo

java.lang.Object

com.illumon.iris.db.v2.locations.parquet.metadata.TableInfo

public abstract class TableInfo
extends Object

Representation class for per-table information stored in key-value metadata for Deephaven-written Parquet files.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	TableInfo.Builder

Constructor Summary

Constructors

Constructor	Description
TableInfo()

Method Summary

Modifier and Type	Method	Description
static TableInfo.Builder	builder()
final Map<String,ColumnTypeInfo>	columnTypeMap()
abstract List<ColumnTypeInfo>	columnTypes()
abstract List<DataIndexInfo>	dataIndexes()
static TableInfo	deserializeFromJSON(String tableInfoRaw)
final Map<String,GroupingColumnInfo>	groupingColumnMap()
final Set<String>	groupingColumnNames()
abstract List<GroupingColumnInfo>	groupingColumns()
final String	serializeToJSON()
abstract List<SortColumnInfo>	sortingColumns()
String	version()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

TableInfo

public TableInfo()

Method Details

serializeToJSON

public final String serializeToJSON()
                             throws io.deephaven.shadow.jackson.com.fasterxml.jackson.core.JsonProcessingException

Throws:

io.deephaven.shadow.jackson.com.fasterxml.jackson.core.JsonProcessingException

deserializeFromJSON

public static TableInfo deserializeFromJSON(@NotNull
 String tableInfoRaw)
                                     throws io.deephaven.shadow.jackson.com.fasterxml.jackson.core.JsonProcessingException

Throws:

io.deephaven.shadow.jackson.com.fasterxml.jackson.core.JsonProcessingException

groupingColumnNames

public final Set<String> groupingColumnNames()

groupingColumnMap

public final Map<String,GroupingColumnInfo> groupingColumnMap()

columnTypeMap

public final Map<String,ColumnTypeInfo> columnTypeMap()

version

@Default
public String version()

Returns:

The Deephaven release version when this metadata format was defined

groupingColumns

public abstract List<GroupingColumnInfo> groupingColumns()

Returns:

List of grouping columns for columns with grouped data

columnTypes

public abstract List<ColumnTypeInfo> columnTypes()

Returns:

List of column types for columns requiring non-default deserialization or type selection

sortingColumns

public abstract List<SortColumnInfo> sortingColumns()

dataIndexes

public abstract List<DataIndexInfo> dataIndexes()

builder

public static TableInfo.Builder builder()