Package org.apache.druid.data.input

Class ListBasedInputRowAdapter

java.lang.Object

org.apache.druid.data.input.ListBasedInputRowAdapter

All Implemented Interfaces:

RowAdapter<InputRow>

public class ListBasedInputRowAdapter
extends Object
implements RowAdapter<InputRow>

Adapter for reading ListBasedInputRow. The RowAdapters.standardRow() would also work, but this one is faster because it avoids per-row field-name-to-index lookups. Must be instantiated with the same RowSignature as the ListBasedInputRow that are to be parsed.

Constructor Summary

Constructors

Constructor	Description
ListBasedInputRowAdapter(RowSignature fields)

Method Summary

Modifier and Type	Method	Description
Function<InputRow,Object>	columnFunction(String columnName)	Returns a function that retrieves the value for column "columnName" from rows.
ToLongFunction<InputRow>	timestampFunction()	Returns a function that retrieves timestamps from rows.

Methods inherited from class java.lang.Object

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

Constructor Details

ListBasedInputRowAdapter

public ListBasedInputRowAdapter(RowSignature fields)

Method Details

timestampFunction

public ToLongFunction<InputRow> timestampFunction()

Description copied from interface: RowAdapter

Returns a function that retrieves timestamps from rows. The default implementation delegates to RowAdapter.columnFunction(java.lang.String) and expects it to already contain long-typed values or nulls. Nulls, if present, will be converted to zeroes.

Specified by:

timestampFunction in interface RowAdapter<InputRow>

columnFunction

public Function<InputRow,Object> columnFunction(String columnName)

Description copied from interface: RowAdapter

Returns a function that retrieves the value for column "columnName" from rows.

Specified by:

columnFunction in interface RowAdapter<InputRow>