Class Parser<T> (0.7.0)

public abstract class Parser<T>

Parser is the parsing superclass, used to take wire format data types and convert them specifically to desired byte types. Each subclass is assigned with a specific type.

Inheritance

Object > Parser<T>

Inherited Members

Object.clone()

Object.equals(Object)

Object.finalize()

Object.getClass()

Object.hashCode()

Object.notify()

Object.notifyAll()

Object.toString()

Object.wait()

Object.wait(long)

Object.wait(long,int)

Type Parameter

Name	Description
T

Static Fields

PG_EPOCH_DAYS

public static final long PG_EPOCH_DAYS

Field Value

Type	Description
long

PG_EPOCH_SECONDS

public static final long PG_EPOCH_SECONDS

Field Value

Type	Description
long

UTF8

protected static final Charset UTF8

Field Value

Type	Description
Charset

Static Methods

create(byte[] item, int oidType, Parser.FormatCode formatCode)

public static Parser<?> create(byte[] item, int oidType, Parser.FormatCode formatCode)

Factory method to create a Parser subtype with a designated type from a byte array.

Parameters

Name	Description
item	`byte[]` The data to be parsed
oidType	`int` The type of the designated data
formatCode	`Parser.FormatCode` The format of the data to be parsed

Returns

Type	Description
Parser<?>	The parser object for the designated data type.

create(ResultSet result, Type type, int columnarPosition)

public static Parser<?> create(ResultSet result, Type type, int columnarPosition)

Factory method for parsing given a result set, for the specified column.

Parameters

Name	Description
result	`com.google.cloud.spanner.ResultSet` The result set object containing all data retrieved.
type	`com.google.cloud.spanner.Type` The type of the data to be parsed.
columnarPosition	`int` Column from the result to be parsed.

Returns

Type	Description
Parser<?>	The parser object for the designated data type.

create(Object result, Type.Code typeCode)

protected static Parser<?> create(Object result, Type.Code typeCode)

Factory method for parsing generic data given a specified type.

Parameters

Name	Description
result	`Object` The generic object to parse.
typeCode	`com.google.cloud.spanner.Type.Code` The type of the object to be parsed.

Returns

Type	Description
Parser<?>	The parser object for the designated data type.

toOid(Type type)

public static int toOid(Type type)

Translates the given Cloud Spanner Type to a PostgreSQL OID constant.

Parameter

Name	Description
type	`com.google.cloud.spanner.Type` the type to translate

Returns

Type	Description
int	The OID constant value for the type

Constructors

Parser()

public Parser()

Fields

item

protected T item

Field Value

Type	Description
T

Methods

binaryParse()

protected abstract byte[] binaryParse()

Used to parse data type onto binary. Override this to change binary representation.

Returns

Type	Description
byte[]

bind(Statement.Builder statementBuilder, String name)

public abstract void bind(Statement.Builder statementBuilder, String name)

Parameters

Name	Description
statementBuilder	`com.google.cloud.spanner.Statement.Builder`
name	`String`

getItem()

public T getItem()

Returns the item helder by this parser.

Returns

Type	Description
T

parse(ProxyServer.DataFormat format)

public byte[] parse(ProxyServer.DataFormat format)

Parses data based on specified data format (Spanner, text, or binary)

Parameter

Name	Description
format	`ProxyServer.DataFormat` One of possible DataFormat types to parse data.

Returns

Type	Description
byte[]	Byte format version of the input object.

spannerBinaryParse()

protected byte[] spannerBinaryParse()

Returns

Type	Description
byte[]	Binary representation of spanner string data.

spannerParse()

protected String spannerParse()

Used to parse data type onto spanner format. Override this to change spanner representation.

Returns

Type	Description
String	Spanner string representation of data.

stringBinaryParse()

protected byte[] stringBinaryParse()

Returns

Type	Description
byte[]	Binary representation of string data.

stringParse()

public abstract String stringParse()

Used to parse data type into string. Override this to change the string representation.

Returns

Type	Description
String	String representation of data.