org.apache.flink.api.java.io

类 CsvInputFormat<OUT>

java.lang.Object

org.apache.flink.api.common.io.RichInputFormat<OT,org.apache.flink.core.fs.FileInputSplit>

org.apache.flink.api.common.io.FileInputFormat<OT>

org.apache.flink.api.common.io.DelimitedInputFormat<OT>

org.apache.flink.api.common.io.GenericCsvInputFormat<OUT>

org.apache.flink.api.java.io.CsvInputFormat<OUT>

类型参数:

OUT -

所有已实现的接口:

Serializable, org.apache.flink.api.common.io.CheckpointableInputFormat<org.apache.flink.core.fs.FileInputSplit,Long>, org.apache.flink.api.common.io.InputFormat<OUT,org.apache.flink.core.fs.FileInputSplit>, org.apache.flink.core.io.InputSplitSource<org.apache.flink.core.fs.FileInputSplit>

直接已知子类:

PojoCsvInputFormat, RowCsvInputFormat, TupleCsvInputFormat

@Internal
public abstract class CsvInputFormat<OUT>
extends org.apache.flink.api.common.io.GenericCsvInputFormat<OUT>

InputFormat that reads csv files.

另请参阅:

序列化表格

嵌套类概要

从类继承的嵌套类/接口 org.apache.flink.api.common.io.FileInputFormat

org.apache.flink.api.common.io.FileInputFormat.FileBaseStatistics, org.apache.flink.api.common.io.FileInputFormat.InputSplitOpenThread

字段概要

字段

限定符和类型	字段和说明
static String	DEFAULT_FIELD_DELIMITER
static String	DEFAULT_LINE_DELIMITER
protected Object[]	parsedValues

从类继承的字段 org.apache.flink.api.common.io.GenericCsvInputFormat

commentCount, commentPrefix, fieldIncluded, invalidLineCount, lineDelimiterIsLinebreak

从类继承的字段 org.apache.flink.api.common.io.DelimitedInputFormat

currBuffer, currLen, currOffset, RECORD_DELIMITER

从类继承的字段 org.apache.flink.api.common.io.FileInputFormat

currentSplit, ENUMERATE_NESTED_FILES_FLAG, enumerateNestedFiles, filePath, INFLATER_INPUT_STREAM_FACTORIES, minSplitSize, numSplits, openTimeout, READ_WHOLE_SPLIT_FLAG, splitLength, splitStart, stream, unsplittable

构造器概要

构造器

限定符	构造器和说明
protected	CsvInputFormat(org.apache.flink.core.fs.Path filePath)

方法概要

限定符和类型	方法和说明
protected static boolean[]	createDefaultMask(int size)
protected abstract OUT	fillRecord(OUT reuse, Object[] parsedValues)
Class<?>[]	getFieldTypes()
protected void	initializeSplit(org.apache.flink.core.fs.FileInputSplit split, Long offset)
OUT	nextRecord(OUT record)
OUT	readRecord(OUT reuse, byte[] bytes, int offset, int numBytes)
protected static boolean[]	toBooleanMask(int[] sourceFieldIndices)
String	toString()

从类继承的方法 org.apache.flink.api.common.io.GenericCsvInputFormat

checkAndCoSort, checkForMonotonousOrder, close, enableQuotedStringParsing, getCommentPrefix, getFieldDelimiter, getFieldParsers, getGenericFieldTypes, getNumberOfFieldsTotal, getNumberOfNonNullFields, isLenient, isSkippingFirstLineAsHeader, parseRecord, setCharset, setCommentPrefix, setFieldDelimiter, setFieldsGeneric, setFieldsGeneric, setFieldTypesGeneric, setLenient, setSkipFirstLineAsHeader, skipFields, supportsMultiPaths

从类继承的方法 org.apache.flink.api.common.io.DelimitedInputFormat

configure, getBufferSize, getCharset, getCurrentState, getDelimiter, getLineLengthLimit, getNumLineSamples, getStatistics, loadConfigParameters, loadGlobalConfigParams, open, reachedEnd, readLine, reopen, setBufferSize, setDelimiter, setDelimiter, setDelimiter, setLineLengthLimit, setNumLineSamples

从类继承的方法 org.apache.flink.api.common.io.FileInputFormat

acceptFile, createInputSplits, decorateInputStream, extractFileExtension, getFilePath, getFilePaths, getFileStats, getFileStats, getInflaterInputStreamFactory, getInputSplitAssigner, getMinSplitSize, getNestedFileEnumeration, getNumSplits, getOpenTimeout, getSplitLength, getSplitStart, registerInflaterInputStreamFactory, setFilePath, setFilePath, setFilePaths, setFilePaths, setFilesFilter, setMinSplitSize, setNestedFileEnumeration, setNumSplits, setOpenTimeout, testForUnsplittable

从类继承的方法 org.apache.flink.api.common.io.RichInputFormat

closeInputFormat, getRuntimeContext, openInputFormat, setRuntimeContext

从类继承的方法 java.lang.Object

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

字段详细资料

DEFAULT_LINE_DELIMITER

public static final String DEFAULT_LINE_DELIMITER

另请参阅:

常量字段值

DEFAULT_FIELD_DELIMITER

public static final String DEFAULT_FIELD_DELIMITER

另请参阅:

常量字段值

parsedValues

protected transient Object[] parsedValues

构造器详细资料

CsvInputFormat

protected CsvInputFormat(org.apache.flink.core.fs.Path filePath)

方法详细资料

initializeSplit

protected void initializeSplit(org.apache.flink.core.fs.FileInputSplit split,
                               Long offset)
                        throws IOException

覆盖:

initializeSplit 在类中 org.apache.flink.api.common.io.GenericCsvInputFormat<OUT>

抛出:

IOException

nextRecord

public OUT nextRecord(OUT record)
               throws IOException

指定者:

nextRecord 在接口中 org.apache.flink.api.common.io.InputFormat<OUT,org.apache.flink.core.fs.FileInputSplit>

覆盖:

nextRecord 在类中 org.apache.flink.api.common.io.DelimitedInputFormat<OUT>

抛出:

IOException

readRecord

public OUT readRecord(OUT reuse,
                      byte[] bytes,
                      int offset,
                      int numBytes)
               throws IOException

指定者:

readRecord 在类中 org.apache.flink.api.common.io.DelimitedInputFormat<OUT>

抛出:

IOException

fillRecord

protected abstract OUT fillRecord(OUT reuse,
                                  Object[] parsedValues)

getFieldTypes

public Class<?>[] getFieldTypes()

createDefaultMask

protected static boolean[] createDefaultMask(int size)

toBooleanMask

protected static boolean[] toBooleanMask(int[] sourceFieldIndices)

toString

public String toString()

覆盖:

toString 在类中 org.apache.flink.api.common.io.FileInputFormat<OUT>