org.apache.druid.segment.column

Class RowSignature.Builder

java.lang.Object

org.apache.druid.segment.column.RowSignature.Builder

Enclosing class:

RowSignature

public static class RowSignature.Builder
extends Object

Method Summary

Modifier and Type	Method and Description
RowSignature.Builder	add(String columnName, ValueType columnType) Add a column to this signature.
RowSignature.Builder	addAggregators(List<AggregatorFactory> aggregators)
RowSignature.Builder	addAll(RowSignature other)
RowSignature.Builder	addDimensions(List<DimensionSpec> dimensions)
RowSignature.Builder	addPostAggregators(List<PostAggregator> postAggregators)
RowSignature.Builder	addTimeColumn()
RowSignature	build()

Methods inherited from class java.lang.Object

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

Method Detail

add

public RowSignature.Builder add(String columnName,
                                @Nullable
                                ValueType columnType)

Add a column to this signature.

Parameters:

columnName - name, must be nonnull

columnType - type, may be null if unknown

addAll

public RowSignature.Builder addAll(RowSignature other)

addTimeColumn

public RowSignature.Builder addTimeColumn()

addDimensions

public RowSignature.Builder addDimensions(List<DimensionSpec> dimensions)

addAggregators

public RowSignature.Builder addAggregators(List<AggregatorFactory> aggregators)

addPostAggregators

public RowSignature.Builder addPostAggregators(List<PostAggregator> postAggregators)

build

public RowSignature build()