org.apache.flink.table.filesystem

类 RowPartitionComputer

java.lang.Object

org.apache.flink.table.filesystem.RowPartitionComputer

所有已实现的接口:

Serializable, PartitionComputer<org.apache.flink.types.Row>

@Internal
public class RowPartitionComputer
extends Object
implements PartitionComputer<org.apache.flink.types.Row>

PartitionComputer for Row.

另请参阅:

序列化表格

字段概要

字段

限定符和类型	字段和说明
protected String	defaultPartValue
protected String[]	partitionColumns
protected int[]	partitionIndexes

构造器概要

构造器

构造器和说明
RowPartitionComputer(String defaultPartValue, String[] columnNames, String[] partitionColumns)

方法概要

限定符和类型	方法和说明
LinkedHashMap<String,String>	generatePartValues(org.apache.flink.types.Row in) Compute partition values from record.
org.apache.flink.types.Row	projectColumnsToWrite(org.apache.flink.types.Row in) Project non-partition columns for output writer.
static Object	restorePartValueFromType(String valStr, org.apache.flink.table.types.DataType type) Restore partition value from string and type.

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

defaultPartValue

protected final String defaultPartValue

partitionColumns

protected final String[] partitionColumns

partitionIndexes

protected final int[] partitionIndexes

构造器详细资料

RowPartitionComputer

public RowPartitionComputer(String defaultPartValue,
                            String[] columnNames,
                            String[] partitionColumns)

方法详细资料

generatePartValues

public LinkedHashMap<String,String> generatePartValues(org.apache.flink.types.Row in)
                                                throws Exception

从接口复制的说明: PartitionComputer

Compute partition values from record.

指定者:

generatePartValues 在接口中 PartitionComputer<org.apache.flink.types.Row>

参数:

in - input record.

返回:

partition values.

抛出:

Exception

projectColumnsToWrite

public org.apache.flink.types.Row projectColumnsToWrite(org.apache.flink.types.Row in)

从接口复制的说明: PartitionComputer

Project non-partition columns for output writer.

指定者:

projectColumnsToWrite 在接口中 PartitionComputer<org.apache.flink.types.Row>

参数:

in - input record.

返回:

projected record.

restorePartValueFromType

public static Object restorePartValueFromType(String valStr,
                                              org.apache.flink.table.types.DataType type)

Restore partition value from string and type. This method is the opposite of method generatePartValues(org.apache.flink.types.Row).

参数:

valStr - string partition value.

type - type of partition field.

返回:

partition value.