com.pervasive.datarush.schema

Interface RecordTextSchema<T extends TextDataType>

Type Parameters:

T - the type of fields in the schema

All Superinterfaces:

TextSchema

All Known Implementing Classes:

FixedWidthTextRecord, TextRecord

public interface RecordTextSchema<T extends TextDataType>
extends TextSchema

A schema for text files containing a single record type. This is opposed to files which may contain multiple record types; those are described using FixedWidthMultiRecordTextSchema instead.

Method Summary

Methods

Modifier and Type	Method and Description
TokenFormatter	createFieldFormatter(String fieldName) Creates a new formatter for values of the specified field.
TokenParser	createFieldParser(String fieldName) Creates a new parser for values of the specified field.
TextConversionDefaults	getDefaults() Gets the default conversion behaviors for fields in the schema which do not explicitly define any.
int	getFieldCount() Gets the number of fields defined in the record.
FieldDomain	getFieldDomain(String name) Gets the domain of the specified field in the record.
List<String>	getFieldNames() Gets the names of the fields defined in the record.
T	getFieldType(String name) Gets the type of the specified fields in the record.
RecordTokenType	getTokenType() Gets the type of the token representation of the text record.
boolean	isFieldDefined(String name) Indicates whether a field with the given name is already defined.

Method Detail

getTokenType

RecordTokenType getTokenType()

Gets the type of the token representation of the text record. The fields of the resulting type are in the same order and have the same name as the fields in the schema.

Returns:

the token type representing the schema

getFieldCount

int getFieldCount()

Gets the number of fields defined in the record.

Returns:

the number of defined fields

getFieldNames

List<String> getFieldNames()

Gets the names of the fields defined in the record. The names are returned in the order they were defined.

Returns:

a list of defined field names

isFieldDefined

boolean isFieldDefined(String name)

Indicates whether a field with the given name is already defined.

Parameters:

name - the field to check

Returns:

true if a field with the name is defined in the schema, false otherwise.

getFieldType

T getFieldType(String name)

Gets the type of the specified fields in the record. The names are returned in the order they were defined.

Parameters:

name - the field for which to fetch the type

Returns:

the text type of the named field

getFieldDomain

FieldDomain getFieldDomain(String name)

Gets the domain of the specified field in the record.

Parameters:

name - the field for which to fetch the domain

Returns:

the domain of the named field

createFieldParser

TokenParser createFieldParser(String fieldName)

Creates a new parser for values of the specified field.

Parameters:

fieldName - the field for which to obtain a parser

Returns:

a parser for converting text values to token values for the field

createFieldFormatter

TokenFormatter createFieldFormatter(String fieldName)

Creates a new formatter for values of the specified field.

Parameters:

fieldName - the field for which to obtain a formatter

Returns:

a formatter for converting token values to text values for the field

getDefaults

TextConversionDefaults getDefaults()

Gets the default conversion behaviors for fields in the schema which do not explicitly define any. These include settings such as the null indicator for values and whether string values are trimmed or preserved as is.

Returns:

the default behavior for the schema