PgServer

This class implements a subset of the PostgreSQL protocol as described here: http://developer.postgresql.org/pgdocs/postgres/protocol.html The PostgreSQL catalog is described here: http://www.postgresql.org/docs/7.4/static/catalogs.html

Methods
static int	convertType(int type) Convert the SQL type to a PostgreSQL type
static int	convertType(int type) Convert the SQL type to a PostgreSQL type Parameters: type - the SQL type Returns: the PostgreSQL type
static String	formatType(Connection conn, int pgType, int typeMod) Check if the current session has access to this table.
static String	formatType(Connection conn, int pgType, int typeMod) throws SQLException Check if the current session has access to this table. This method is called by the database. Parameters: conn - the connection pgType - the PostgreSQL type oid typeMod - the type modifier (typically -1) Returns: the name of the given type
static String	getCurrentSchema(Connection conn) Get the name of the current schema.
static String	getCurrentSchema(Connection conn) throws SQLException Get the name of the current schema. This method is called by the database. Parameters: conn - the connection Returns: the schema name
static int	getCurrentTid(String table, String id) Get the current transaction id.
static int	getCurrentTid(String table, String id) Get the current transaction id. This method is called by the database. Parameters: table - the table name id - the id Returns: 1
static String	getEncodingName(int code) Get the name of this encoding code.
static String	getEncodingName(int code) Get the name of this encoding code. This method is called by the database. Parameters: code - the encoding code Returns: the encoding name
static String	getIndexColumn(Connection conn, int indexId, Integer ordinalPosition, Boolean pretty) The Java implementation of the PostgreSQL function pg_get_indexdef.
static String	getIndexColumn(Connection conn, int indexId, Integer ordinalPosition, Boolean pretty) throws SQLException The Java implementation of the PostgreSQL function pg_get_indexdef. The method is used to get CREATE INDEX command for an index, or the column definition of one column in the index. Parameters: conn - the connection indexId - the index id ordinalPosition - the ordinal position (null if the SQL statement should be returned) pretty - this flag is ignored Returns: the SQL statement or the column name
static int	getOid(Connection conn, String tableName) Get the OID of an object.
static int	getOid(Connection conn, String tableName) throws SQLException Get the OID of an object. This method is called by the database. Parameters: conn - the connection tableName - the table name Returns: the oid
static String	getPgExpr(String exprText, int relationOid) A fake wrapper around pg_get_expr(expr_text, relation_oid), in PostgreSQL it "decompiles the internal form of an expression, assuming that any vars in it refer to the relation indicated by the second parameter".
static String	getPgExpr(String exprText, int relationOid) A fake wrapper around pg_get_expr(expr_text, relation_oid), in PostgreSQL it "decompiles the internal form of an expression, assuming that any vars in it refer to the relation indicated by the second parameter". Parameters: exprText - the expression text relationOid - the relation object id Returns: always null
static Timestamp	getStartTime() Get the current system time.
static Timestamp	getStartTime() Get the current system time. This method is called by the database. Returns: the current system time
static String	getUserById(Connection conn, int id) Get the user name for this id.
static String	getUserById(Connection conn, int id) throws SQLException Get the user name for this id. This method is called by the database. Parameters: conn - the connection id - the user id Returns: the user name
static String	getVersion() Get the version.
static String	getVersion() Get the version. This method must return PostgreSQL to keep some clients happy. This method is called by the database. Returns: the server name and version
static boolean	hasDatabasePrivilege(int id, String privilege) Check if the this session has the given database privilege.
static boolean	hasDatabasePrivilege(int id, String privilege) Check if the this session has the given database privilege. This method is called by the database. Parameters: id - the session id privilege - the privilege to check Returns: true
static boolean	hasTablePrivilege(String table, String privilege) Check if the current session has access to this table.
static boolean	hasTablePrivilege(String table, String privilege) Check if the current session has access to this table. This method is called by the database. Parameters: table - the table name privilege - the privilege to check Returns: true
String	checkKeyAndGetDatabaseName(String db) If no key is set, return the original database name.
String	checkKeyAndGetDatabaseName(String db) If no key is set, return the original database name. If a key is set, check if the key matches. If yes, return the correct database name. If not, throw an exception. Parameters: db - the key to test (or database name if no key is used) Returns: the database name Throws: DbException - if a key is set but doesn't match
void	checkType(int type) Check whether a data type is supported.
void	checkType(int type) Check whether a data type is supported. A warning is logged if not. Parameters: type - the type
boolean	getAllowOthers()
boolean	getAllowOthers()
String	getBaseDir()
String	getBaseDir()
boolean	getIfExists()
boolean	getIfExists()
String	getName()
String	getName()
int	getPort()
int	getPort()
PgServerThread	getThread(int processId) Get the thread with the given process id.
PgServerThread	getThread(int processId) Get the thread with the given process id. Parameters: processId - the process id Returns: the thread
boolean	getTrace()
boolean	getTrace()
String	getType()
String	getType()
HashSet	getTypeSet() Get the type hash set.
HashSet	getTypeSet() Get the type hash set. Returns: the type set
String	getURL()
String	getURL()
void	init(String... args)
void	init(String... args)
boolean	isDaemon()
boolean	isDaemon()
boolean	isRunning(boolean traceError)
boolean	isRunning(boolean traceError)
void	listen()
void	listen()
void	remove(PgServerThread t) Remove a thread from the list.
void	remove(PgServerThread t) Remove a thread from the list. Parameters: t - the thread to remove
void	start()
void	start()
void	stop()
void	stop()
void	trace(String s) Print a message if the trace flag is enabled.
void	trace(String s) Print a message if the trace flag is enabled. Parameters: s - the message
void	traceError(Exception e) Print the stack trace if the trace flag is enabled.
void	traceError(Exception e) Print the stack trace if the trace flag is enabled. Parameters: e - the exception