smacs.find
Class DatabaseList

java.lang.Object
  smacs.find.DatabaseList

Direct Known Subclasses:

TableList

public class DatabaseList

extends Object

Scan node tree for items looking like database/schema references.

The SEARCH_PATH is an idiom in postgresql to declare the database names that a script shall recognize. We suspect the path to be declared in a view scriptlet to give an order to the database names in the script. The internal compiler parts will eventually use numeric index numbers to access database names. If there is no explicit search_path then we order the databases in the order that they occur textually in the view scriptlet.

Author:

Copyright (C) 2004, Guido Draheim. All rights reserved. Part of SMACS project.

Field Summary

protected static Logger

log

Constructor Summary

DatabaseList()

DatabaseList(SimpleNode tree)

Method Summary

void	addDatabaseReference(String database)
int	addDatabaseReferencesIn(SimpleNode tree)
void	clear()
boolean	eachSqlDatabaseReference(String database)
boolean	eachSqlSetSearchPathArgument(String database)
boolean	eachSqlSetSearchPathArgumentList(Node node)
boolean	eachSqlTableReferencePrefixValue(String database)
Enumeration	elements()
boolean	isEmpty()
static void	main(String[] args) self test program
int	printDatabaseList(PrintStream stream)
int	size()
String	toString()
int	walkSetSearchPathArgumentList(SimpleNode tree) here, scan the scriptlet tree for an explicit SET SEARCH_PATH
int	walkTableReferencePrefixValue(SimpleNode tree)

Methods inherited from class java.lang.Object

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

Field Detail

log

protected static final Logger log

Constructor Detail

DatabaseList

public DatabaseList()

DatabaseList

public DatabaseList(SimpleNode tree)

Method Detail

walkSetSearchPathArgumentList

public int walkSetSearchPathArgumentList(SimpleNode tree)

here, scan the scriptlet tree for an explicit SET SEARCH_PATH

walkTableReferencePrefixValue

public int walkTableReferencePrefixValue(SimpleNode tree)

eachSqlTableReferencePrefixValue

public boolean eachSqlTableReferencePrefixValue(String database)

eachSqlSetSearchPathArgumentList

public boolean eachSqlSetSearchPathArgumentList(Node node)

eachSqlSetSearchPathArgument

public boolean eachSqlSetSearchPathArgument(String database)

eachSqlDatabaseReference

public boolean eachSqlDatabaseReference(String database)

addDatabaseReference

public void addDatabaseReference(String database)

printDatabaseList

public int printDatabaseList(PrintStream stream)

addDatabaseReferencesIn

public int addDatabaseReferencesIn(SimpleNode tree)

clear

public void clear()

isEmpty

public boolean isEmpty()

toString

public String toString()

elements

public Enumeration elements()

size

public int size()

main

public static void main(String[] args)

self test program