org.kitesdk.data.mapreduce

Class DatasetKeyInputFormat.ConfigBuilder

java.lang.Object

org.kitesdk.data.mapreduce.DatasetKeyInputFormat.ConfigBuilder

Enclosing class:

DatasetKeyInputFormat<E>

public static class DatasetKeyInputFormat.ConfigBuilder
extends Object

Method Summary

Methods

Modifier and Type	Method and Description
DatasetKeyInputFormat.ConfigBuilder	readFrom(String uri) Adds configuration for DatasetKeyInputFormat to read from the given dataset or view URI string.
DatasetKeyInputFormat.ConfigBuilder	readFrom(URI uri) Adds configuration for DatasetKeyInputFormat to read from the given dataset or view URI.
DatasetKeyInputFormat.ConfigBuilder	readFrom(View<?> view) Adds configuration for DatasetKeyInputFormat to read from the given Dataset or View instance.
DatasetKeyInputFormat.ConfigBuilder	withSchema(Schema readerSchema) Sets the expected schema to use when reading records from the Dataset.
<E> DatasetKeyInputFormat.ConfigBuilder	withType(Class<E> type) Sets the entity Class that the input Dataset should produce.

Methods inherited from class java.lang.Object

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

Method Detail

readFrom

public DatasetKeyInputFormat.ConfigBuilder readFrom(URI uri)

Adds configuration for DatasetKeyInputFormat to read from the given dataset or view URI.

URI formats are defined by Dataset implementations, but must begin with "dataset:" or "view:". For more information, see Datasets.

Parameters:

uri - a dataset or view URI

Returns:

this for method chaining

readFrom

public DatasetKeyInputFormat.ConfigBuilder readFrom(View<?> view)

Adds configuration for DatasetKeyInputFormat to read from the given Dataset or View instance.

Parameters:

view - a dataset or view

Returns:

this for method chaining

readFrom

public DatasetKeyInputFormat.ConfigBuilder readFrom(String uri)

Adds configuration for DatasetKeyInputFormat to read from the given dataset or view URI string.

URI formats are defined by Dataset implementations, but must begin with "dataset:" or "view:". For more information, see Datasets.

Parameters:

uri - a dataset or view URI string

Returns:

this for method chaining

withType

public <E> DatasetKeyInputFormat.ConfigBuilder withType(Class<E> type)

Sets the entity Class that the input Dataset should produce.

This Class is used to configure the input Dataset. If this class cannot be found during job setup, the job will fail and throw a TypeNotFoundException.

If the type is set, then the type's schema is used for the expected schema and withSchema(Schema) should not be called. This may, however, be used at the same time if the type is a generic record subclass.

Parameters:

type - the entity Class that will be produced

Returns:

this for method chaining

withSchema

public DatasetKeyInputFormat.ConfigBuilder withSchema(Schema readerSchema)

Sets the expected schema to use when reading records from the Dataset.

If this schema is set, withType(Class) should only be called with a generic record subclass.

Parameters:

readerSchema - the expected entity schema

Returns:

this for method chaining

Since:

1.1.0