io.cdap.wrangler.utils

Class SchemaConverter

java.lang.Object

io.cdap.wrangler.utils.SchemaConverter

public final class SchemaConverter
extends Object

This class provides functionality to retrieve Schema from a row or an object.

Constructor Summary

Constructors

Constructor and Description
SchemaConverter()

Method Summary

Modifier and Type	Method and Description
io.cdap.cdap.api.data.schema.Schema	getSchema(Object value, String name) Generates the CDAP Schema for the given object
io.cdap.cdap.api.data.schema.Schema	getSchema(Object value, String name, String recordPrefix) Generates the CDAP Schema for the given object
io.cdap.cdap.api.data.schema.Schema	toSchema(String id, Row row) Generates a Schema given a row.

Methods inherited from class java.lang.Object

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

Constructor Detail

SchemaConverter

public SchemaConverter()

Method Detail

toSchema

public io.cdap.cdap.api.data.schema.Schema toSchema(String id,
                                                    Row row)
                                             throws RecordConvertorException

Generates a Schema given a row.

Parameters:

id - Schema id

Returns:

returns Schema

Throws:

io.cdap.cdap.api.data.schema.UnsupportedTypeException

org.json.JSONException

RecordConvertorException

getSchema

@Nullable
public io.cdap.cdap.api.data.schema.Schema getSchema(Object value,
                                                               String name)
                                                        throws RecordConvertorException

Generates the CDAP Schema for the given object

Parameters:

value - the value to retrieve schema

name - name of the field

Returns:

the schema of this object

Throws:

RecordConvertorException

getSchema

@Nullable
public io.cdap.cdap.api.data.schema.Schema getSchema(Object value,
                                                               String name,
                                                               @Nullable
                                                               String recordPrefix)
                                                        throws RecordConvertorException

Generates the CDAP Schema for the given object

Parameters:

value - the value to retrieve schema

name - name of the field

recordPrefix - prefix to append at the beginning of a custom record

Returns:

the schema of this object

Throws:

RecordConvertorException