org.apache.drill.exec.record.metadata.schema.parser

Class SchemaExprParser

java.lang.Object

org.apache.drill.exec.record.metadata.schema.parser.SchemaExprParser

public class SchemaExprParser
extends Object

Constructor Summary

Constructors

Constructor and Description
SchemaExprParser()

Method Summary

Modifier and Type	Method and Description
static ColumnMetadata	parseColumn(String column) Parses string definition of the column and converts it into ColumnMetadata instance.
static ColumnMetadata	parseColumn(String name, String type, TypeProtos.DataMode mode) Parses given column name, type and mode into ColumnMetadata instance.
static TupleMetadata	parseSchema(String schema) Parses string definition of the schema and converts it into TupleMetadata instance.

Methods inherited from class java.lang.Object

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

Constructor Detail

SchemaExprParser

public SchemaExprParser()

Method Detail

parseSchema

public static TupleMetadata parseSchema(String schema)
                                 throws IOException

Parses string definition of the schema and converts it into TupleMetadata instance.

Parameters:

schema - schema definition

Returns:

metadata description of the schema

Throws:

IOException - when unable to parse the schema

parseColumn

public static ColumnMetadata parseColumn(String name,
                                         String type,
                                         TypeProtos.DataMode mode)
                                  throws IOException

Parses given column name, type and mode into ColumnMetadata instance.

Parameters:

name - column name

type - column type

mode - column mode

Returns:

column metadata

Throws:

IOException - when unable to parse the column

parseColumn

public static ColumnMetadata parseColumn(String column)
                                  throws IOException

Parses string definition of the column and converts it into ColumnMetadata instance.

Parameters:

column - column definition

Returns:

metadata description of the column

Throws:

IOException - when unable to parse the column