Package org.pgcodekeeper.core.loader.pg

Class JdbcSystemLoader

java.lang.Object

org.pgcodekeeper.core.loader.DatabaseLoader

org.pgcodekeeper.core.loader.jdbc.JdbcLoaderBase

org.pgcodekeeper.core.loader.pg.JdbcSystemLoader

public final class JdbcSystemLoader
extends JdbcLoaderBase

JDBC-based system metadata loader for PostgreSQL databases. Loads system functions, relations, operators, and casts from PostgreSQL system catalogs to build metadata storage for analysis purposes.

Constructor Summary

Constructors

Constructor	Description
JdbcSystemLoader(AbstractJdbcConnector connector, String timezone, IMonitor monitor)	Creates a new system loader for the specified database connection.

Method Summary

Modifier and Type	Method	Description
MetaStorage	getStorageFromJdbc()	Loads system metadata from JDBC connection and returns metadata storage.
AbstractDatabase	load()	Not supported operation for system loader.

Methods inherited from class org.pgcodekeeper.core.loader.jdbc.JdbcLoaderBase

addError, getCachedTypeByOid, getConnection, getCurrentLocation, getExtensionSchema, getLastSysOid, getMonitor, getMsType, getMsType, getRoleByOid, getRunner, getSchemas, getSettings, getStatement, getVersion, isGreenplumDb, isIgnoredSchema, putSchema, setAuthor, setComment, setCurrentObject, setCurrentOperation, setOwner, setOwner, setPrivileges, setPrivileges, setPrivileges, setPrivileges, submitAntlrTask, submitChAntlrTask, submitMsAntlrTask, submitPlpgsqlTask

Methods inherited from class org.pgcodekeeper.core.loader.DatabaseLoader

createDb, getErrors, loadAndAnalyze

Methods inherited from class java.lang.Object

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

Constructor Details

JdbcSystemLoader

public JdbcSystemLoader(AbstractJdbcConnector connector,
 String timezone,
 IMonitor monitor)

Creates a new system loader for the specified database connection.

Parameters:

connector - the JDBC connector for database connection

timezone - the timezone to set for the database connection

monitor - progress monitor for tracking loading progress

Method Details

load

public AbstractDatabase load()
                      throws IOException,
InterruptedException

Not supported operation for system loader.

Specified by:

load in class DatabaseLoader

Returns:

the loaded database schema

Throws:

IllegalStateException - always, as this operation is not supported

IOException - if database loading fails

InterruptedException - if the loading process is interrupted

getStorageFromJdbc

public MetaStorage getStorageFromJdbc()
                               throws IOException,
InterruptedException

Loads system metadata from JDBC connection and returns metadata storage. Reads system functions, relations, operators, and casts from PostgreSQL catalogs.

Returns:

metadata storage containing system objects

Throws:

IOException - if database access fails

InterruptedException - if loading is interrupted