Package org.apache.druid.data.input

Interface Row

All Superinterfaces:

Comparable<Row>

All Known Subinterfaces:

InputRow

All Known Implementing Classes:

MapBasedInputRow, MapBasedRow, Transformer.TransformedInputRow

public interface Row
extends Comparable<Row>

A Row of data. This can be used for both input and output into various parts of the system. It assumes that the user already knows the schema of the row and can query for the parts that they care about.

Method Summary

Modifier and Type	Method	Description
List<String>	getDimension(String dimension)	Returns the list of dimension values for the given column name.
Number	getMetric(String metric)	Returns the metric column value for the given column name.
Object	getRaw(String dimension)	Returns the raw dimension value for the given column name.
org.joda.time.DateTime	getTimestamp()	Returns the timestamp from the epoch as an org.joda.time.DateTime.
long	getTimestampFromEpoch()	Returns the timestamp from the epoch in milliseconds.

Methods inherited from interface java.lang.Comparable

compareTo

Method Detail

getTimestampFromEpoch

long getTimestampFromEpoch()

Returns the timestamp from the epoch in milliseconds. If the event happened _right now_, this would return the same thing as System.currentTimeMillis();

Returns:

the timestamp from the epoch in milliseconds.

getTimestamp

org.joda.time.DateTime getTimestamp()

Returns the timestamp from the epoch as an org.joda.time.DateTime. If the event happened _right now_, this would return the same thing as new DateTime();

Returns:

the timestamp from the epoch as an org.joda.time.DateTime object.

getDimension

List<String> getDimension(String dimension)

Returns the list of dimension values for the given column name.

Parameters:

dimension - the column name of the dimension requested

Returns:

the list of values for the provided column name

getRaw

@Nullable
Object getRaw(String dimension)

Returns the raw dimension value for the given column name. This is different from getDimension(java.lang.String) which converts all values to strings before returning them.

Parameters:

dimension - the column name of the dimension requested

Returns:

the value of the provided column name

getMetric

@Nullable
Number getMetric(String metric)

Returns the metric column value for the given column name. This method is different from getRaw(java.lang.String) in two aspects: 1. If the column is absent in the row, either numeric zero or null will be returned, depending on the value of druid.generic.useDefaultValueForNull. 2. If the column has string value, an attempt is made to parse this value as a number.