org.apache.flink.types.parser

Class DoubleValueParser

java.lang.Object

org.apache.flink.types.parser.FieldParser<DoubleValue>

org.apache.flink.types.parser.DoubleValueParser

public class DoubleValueParser
extends FieldParser<DoubleValue>

Parses a text field into a DoubleValue.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.flink.types.parser.FieldParser

FieldParser.ParseErrorState

Constructor Summary

Constructors

Constructor and Description
DoubleValueParser()

Method Summary

Methods

Modifier and Type	Method and Description
DoubleValue	createValue() Returns an instance of the parsed value type.
DoubleValue	getLastResult() Gets the parsed field.
int	parseField(byte[] bytes, int startPos, int limit, byte[] delimiter, DoubleValue reusable) Parses the value of a field from the byte array.

Methods inherited from class org.apache.flink.types.parser.FieldParser

delimiterNext, getErrorState, getParserForType, setErrorState

Methods inherited from class java.lang.Object

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

Constructor Detail

DoubleValueParser

public DoubleValueParser()

Method Detail

parseField

public int parseField(byte[] bytes,
             int startPos,
             int limit,
             byte[] delimiter,
             DoubleValue reusable)

Description copied from class: FieldParser

Parses the value of a field from the byte array. The start position within the byte array and the array's valid length is given. The content of the value is delimited by a field delimiter.

Specified by:

parseField in class FieldParser<DoubleValue>

Parameters:

bytes - The byte array that holds the value.

startPos - The index where the field starts

limit - The limit unto which the byte contents is valid for the parser. The limit is the position one after the last valid byte.

delimiter - The field delimiter character

reusable - An optional reusable field to hold the value

Returns:

The index of the next delimiter, if the field was parsed correctly. A value less than 0 otherwise.

createValue

public DoubleValue createValue()

Description copied from class: FieldParser

Returns an instance of the parsed value type.

Specified by:

createValue in class FieldParser<DoubleValue>

Returns:

An instance of the parsed value type.

getLastResult

public DoubleValue getLastResult()

Description copied from class: FieldParser

Gets the parsed field. This method returns the value parsed by the last successful invocation of FieldParser.parseField(byte[], int, int, byte[], Object). It objects are mutable and reused, it will return the object instance that was passed the parse function.

Specified by:

getLastResult in class FieldParser<DoubleValue>

Returns:

The latest parsed field.