com.impossibl.postgres.types

Class Registry

java.lang.Object

com.impossibl.postgres.types.Registry

public class Registry
extends Object

Storage and loading for all the known types of a given context.

Author:

kdubb

Constructor Summary

Constructors

Constructor and Description
Registry(Context context)

Method Summary

Methods

Modifier and Type	Method and Description
int	getLatestKnownTypeId()
Type.Codec	loadCodec(int encoderId, int decoderId, ResultField.Format format) Loads a matching Codec given the proc-id of its encoder and decoder
Modifiers.Parser	loadModifierParser(int modInId, int modOutId)
CompositeType	loadRelationType(int relationId) Loads a relation (aka table) type by its relation-id
Type	loadType(int typeId) Loads a type by its type-id (aka OID)
Type	loadType(String name) Loads a type by its name
int	lookupProcId(String procName) Looks up a procedure id (aka OID) given it's name.
String	lookupProcName(int procId) Looks up a procedures name given it's proc-id (aka OID)
void	unloadType(int oid)
void	unloadType(String name)
void	update(Collection<PgType.Row> pgTypeRows, Collection<PgAttribute.Row> pgAttrRows, Collection<PgProc.Row> pgProcRows) Updates the type information from the given catalog data.

Methods inherited from class java.lang.Object

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

Constructor Detail

Registry

public Registry(Context context)

Method Detail

loadType

public Type loadType(int typeId)

Loads a type by its type-id (aka OID)

Parameters:

typeId - The type's id

Returns:

Type object or null, if none found

loadType

public Type loadType(String name)

Loads a type by its name

Parameters:

name - The type's name

Returns:

Type object or null, if none found

loadRelationType

public CompositeType loadRelationType(int relationId)

Loads a relation (aka table) type by its relation-id

Parameters:

relationId - Relation ID of the type to load

Returns:

Relation type or null

unloadType

public void unloadType(int oid)

unloadType

public void unloadType(String name)

lookupProcName

public String lookupProcName(int procId)

Looks up a procedures name given it's proc-id (aka OID)

Parameters:

procId - The procedure's id

Returns:

The text name of the procedure or null, if none found

lookupProcId

public int lookupProcId(String procName)

Looks up a procedure id (aka OID) given it's name.

Parameters:

procName - The procedure's name

Returns:

The id of the procedure (aka OID) or null, if none found

getLatestKnownTypeId

public int getLatestKnownTypeId()

update

public void update(Collection<PgType.Row> pgTypeRows,
          Collection<PgAttribute.Row> pgAttrRows,
          Collection<PgProc.Row> pgProcRows)

Updates the type information from the given catalog data. Any information not specifically mentioned in the given updated data will be retained and untouched.

Parameters:

pgTypeRows - "pg_type" table rows

pgAttrRows - "pg_attribute" table rows

pgProcRows - "pg_proc" table rows

loadCodec

public Type.Codec loadCodec(int encoderId,
                   int decoderId,
                   ResultField.Format format)

Loads a matching Codec given the proc-id of its encoder and decoder

Parameters:

encoderId - proc-id of the encoder

decoderId - proc-id of the decoder

Returns:

A matching Codec instance

loadModifierParser

public Modifiers.Parser loadModifierParser(int modInId,
                                  int modOutId)