org.apache.flink.table.store.format

类 FileFormat

java.lang.Object

org.apache.flink.table.store.format.FileFormat

public abstract class FileFormat
extends Object

Factory class which creates reader and writer factories for specific file format.

NOTE: This class must be thread safe.

字段概要

字段

限定符和类型	字段和说明
protected String	formatIdentifier

构造器概要

构造器

限定符	构造器和说明
protected	FileFormat(String formatIdentifier)

方法概要

限定符和类型	方法和说明
org.apache.flink.connector.file.src.reader.BulkFormat<org.apache.flink.table.data.RowData,org.apache.flink.connector.file.src.FileSourceSplit>	createReaderFactory(org.apache.flink.table.types.logical.RowType rowType)
org.apache.flink.connector.file.src.reader.BulkFormat<org.apache.flink.table.data.RowData,org.apache.flink.connector.file.src.FileSourceSplit>	createReaderFactory(org.apache.flink.table.types.logical.RowType rowType, int[][] projection)
abstract org.apache.flink.connector.file.src.reader.BulkFormat<org.apache.flink.table.data.RowData,org.apache.flink.connector.file.src.FileSourceSplit>	createReaderFactory(org.apache.flink.table.types.logical.RowType type, int[][] projection, List<Predicate> filters) Create a BulkFormat from the type, with projection pushed down.
Optional<FileStatsExtractor>	createStatsExtractor(org.apache.flink.table.types.logical.RowType type)
abstract org.apache.flink.api.common.serialization.BulkWriter.Factory<org.apache.flink.table.data.RowData>	createWriterFactory(org.apache.flink.table.types.logical.RowType type) Create a BulkWriter.Factory from the type.
static FileFormat	fromIdentifier(String identifier, org.apache.flink.configuration.Configuration options) Create a FileFormat from format identifier and format options.
static FileFormat	fromTableOptions(org.apache.flink.configuration.Configuration tableOptions, org.apache.flink.configuration.ConfigOption<String> formatOption) Create a FileFormat from table options.
String	getFormatIdentifier()

从类继承的方法 java.lang.Object

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

字段详细资料

formatIdentifier

protected String formatIdentifier

构造器详细资料

FileFormat

protected FileFormat(String formatIdentifier)

方法详细资料

getFormatIdentifier

public String getFormatIdentifier()

createReaderFactory

public abstract org.apache.flink.connector.file.src.reader.BulkFormat<org.apache.flink.table.data.RowData,org.apache.flink.connector.file.src.FileSourceSplit> createReaderFactory(org.apache.flink.table.types.logical.RowType type,
                                                                                                                                                                                   int[][] projection,
                                                                                                                                                                                   List<Predicate> filters)

Create a BulkFormat from the type, with projection pushed down.

参数:

type - Type without projection.

projection - See org.apache.flink.table.connector.Projection#toNestedIndexes().

filters - A list of filters in conjunctive form for filtering on a best-effort basis.

createWriterFactory

public abstract org.apache.flink.api.common.serialization.BulkWriter.Factory<org.apache.flink.table.data.RowData> createWriterFactory(org.apache.flink.table.types.logical.RowType type)

Create a BulkWriter.Factory from the type.

createReaderFactory

public org.apache.flink.connector.file.src.reader.BulkFormat<org.apache.flink.table.data.RowData,org.apache.flink.connector.file.src.FileSourceSplit> createReaderFactory(org.apache.flink.table.types.logical.RowType rowType)

createReaderFactory

public org.apache.flink.connector.file.src.reader.BulkFormat<org.apache.flink.table.data.RowData,org.apache.flink.connector.file.src.FileSourceSplit> createReaderFactory(org.apache.flink.table.types.logical.RowType rowType,
                                                                                                                                                                          int[][] projection)

createStatsExtractor

public Optional<FileStatsExtractor> createStatsExtractor(org.apache.flink.table.types.logical.RowType type)

fromTableOptions

public static FileFormat fromTableOptions(org.apache.flink.configuration.Configuration tableOptions,
                                          org.apache.flink.configuration.ConfigOption<String> formatOption)

Create a FileFormat from table options.

fromIdentifier

public static FileFormat fromIdentifier(String identifier,
                                        org.apache.flink.configuration.Configuration options)

Create a FileFormat from format identifier and format options.