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Java Source Code / Java Documentation » Database DBMS » hsql » org.hsqldb

Source Cross Reference Class Diagram Java Document (Java Doc)

java.lang .Object

org.hsqldb .DatabaseInformation

All known Subclasses:   org.hsqldb .DatabaseInformationMain,
DatabaseInformation
class DatabaseInformation (Code)
Base class for system tables. Includes a factory method which returns the most complete implementation available in the jar. This base implementation knows the names of all system tables but returns null for any system table.
This class has been developed from scratch to replace the previous DatabaseInformation implementations.

author:
   boucherb@users
version:
   1.8.0
since:
   1.7.2

Field Summary
final protected static int SYSTEM_ALIASES

final protected static int SYSTEM_ALLTYPEINFO

final protected static int SYSTEM_AUTHORIZATIONS

final protected static int SYSTEM_BESTROWIDENTIFIER

final protected static int SYSTEM_BYTECODE

final protected static int SYSTEM_CACHEINFO

final protected static int SYSTEM_CATALOGS

final protected static int SYSTEM_CHECK_COLUMN_USAGE

final protected static int SYSTEM_CHECK_CONSTRAINTS

final protected static int SYSTEM_CHECK_ROUTINE_USAGE

final protected static int SYSTEM_CHECK_TABLE_USAGE

final protected static int SYSTEM_CLASSPRIVILEGES

final protected static int SYSTEM_COLLATIONS

final protected static int SYSTEM_COLUMNPRIVILEGES

final protected static int SYSTEM_COLUMNS

final protected static int SYSTEM_CROSSREFERENCE

final protected static int SYSTEM_INDEXINFO

final protected static int SYSTEM_PRIMARYKEYS

final protected static int SYSTEM_PROCEDURECOLUMNS

final protected static int SYSTEM_PROCEDURES

final protected static int SYSTEM_PROPERTIES

final protected static int SYSTEM_ROLE_AUTHORIZATION_DESCRIPTORS

final protected static int SYSTEM_SCHEMAS

final protected static int SYSTEM_SCHEMATA

final protected static int SYSTEM_SEQUENCES

final protected static int SYSTEM_SESSIONINFO

final protected static int SYSTEM_SESSIONS

final protected static int SYSTEM_SUPERTABLES

final protected static int SYSTEM_SUPERTYPES

final protected static int SYSTEM_TABLEPRIVILEGES

final protected static int SYSTEM_TABLES

final protected static int SYSTEM_TABLETYPES

final protected static int SYSTEM_TABLE_CONSTRAINTS

final protected static int SYSTEM_TEXTTABLES

final protected static int SYSTEM_TRIGGERCOLUMNS

final protected static int SYSTEM_TRIGGERS

final protected static int SYSTEM_TYPEINFO

final protected static int SYSTEM_UDTATTRIBUTES

final protected static int SYSTEM_UDTS

final protected static int SYSTEM_USAGE_PRIVILEGES

final protected static int SYSTEM_USERS

final protected static int SYSTEM_VERSIONCOLUMNS

final protected static int SYSTEM_VIEWS

final protected static int SYSTEM_VIEW_COLUMN_USAGE

final protected static int SYSTEM_VIEW_ROUTINE_USAGE

final protected static int SYSTEM_VIEW_TABLE_USAGE

final protected Database database

protected boolean isDirty
     Simple object-wide flag indicating that all of this object's cached data is dirty.
final protected static String[] sysTableNames

final protected static IntValueHashMap sysTableNamesMap

protected boolean withContent
     state flag -- if true, contentful tables are to be produced, else empty (surrogate) tables are to be produced.

Constructor Summary
DatabaseInformation(Database db)
     Constructs a new DatabaseInformation instance which knows the names of all system tables (isSystemTable()) but simpy returns null for all getSystemTable() requests.

Method Summary
static int getSysTableID(String token)

Table getSystemTable(Session session, String name)
     Retrieves a table with the specified name whose content may depend on the execution context indicated by the session argument as well as the current value of withContent.
final boolean isSystemTable(String name)
     Tests if the specified name is that of a system table.
final static DatabaseInformation newDatabaseInformation(Database db)
     Factory method retuns the fullest system table producer implementation available.
final void setDirty()
     Controls caching of all tables produced by this object.
final void setWithContent(boolean withContent)
     Switches this table producer between producing empty (surrogate) or contentful tables.

Field Detail
SYSTEM_ALIASES
final protected static int SYSTEM_ALIASES(Code)

SYSTEM_ALLTYPEINFO
final protected static int SYSTEM_ALLTYPEINFO(Code)

SYSTEM_AUTHORIZATIONS
final protected static int SYSTEM_AUTHORIZATIONS(Code)

SYSTEM_BESTROWIDENTIFIER
final protected static int SYSTEM_BESTROWIDENTIFIER(Code)

SYSTEM_BYTECODE
final protected static int SYSTEM_BYTECODE(Code)

SYSTEM_CACHEINFO
final protected static int SYSTEM_CACHEINFO(Code)

SYSTEM_CATALOGS
final protected static int SYSTEM_CATALOGS(Code)

SYSTEM_CHECK_COLUMN_USAGE
final protected static int SYSTEM_CHECK_COLUMN_USAGE(Code)

SYSTEM_CHECK_CONSTRAINTS
final protected static int SYSTEM_CHECK_CONSTRAINTS(Code)

SYSTEM_CHECK_ROUTINE_USAGE
final protected static int SYSTEM_CHECK_ROUTINE_USAGE(Code)

SYSTEM_CHECK_TABLE_USAGE
final protected static int SYSTEM_CHECK_TABLE_USAGE(Code)

SYSTEM_CLASSPRIVILEGES
final protected static int SYSTEM_CLASSPRIVILEGES(Code)

SYSTEM_COLLATIONS
final protected static int SYSTEM_COLLATIONS(Code)

SYSTEM_COLUMNPRIVILEGES
final protected static int SYSTEM_COLUMNPRIVILEGES(Code)

SYSTEM_COLUMNS
final protected static int SYSTEM_COLUMNS(Code)

SYSTEM_CROSSREFERENCE
final protected static int SYSTEM_CROSSREFERENCE(Code)

SYSTEM_INDEXINFO
final protected static int SYSTEM_INDEXINFO(Code)

SYSTEM_PRIMARYKEYS
final protected static int SYSTEM_PRIMARYKEYS(Code)

SYSTEM_PROCEDURECOLUMNS
final protected static int SYSTEM_PROCEDURECOLUMNS(Code)

SYSTEM_PROCEDURES
final protected static int SYSTEM_PROCEDURES(Code)

SYSTEM_PROPERTIES
final protected static int SYSTEM_PROPERTIES(Code)

SYSTEM_ROLE_AUTHORIZATION_DESCRIPTORS
final protected static int SYSTEM_ROLE_AUTHORIZATION_DESCRIPTORS(Code)

SYSTEM_SCHEMAS
final protected static int SYSTEM_SCHEMAS(Code)

SYSTEM_SCHEMATA
final protected static int SYSTEM_SCHEMATA(Code)

SYSTEM_SEQUENCES
final protected static int SYSTEM_SEQUENCES(Code)

SYSTEM_SESSIONINFO
final protected static int SYSTEM_SESSIONINFO(Code)

SYSTEM_SESSIONS
final protected static int SYSTEM_SESSIONS(Code)

SYSTEM_SUPERTABLES
final protected static int SYSTEM_SUPERTABLES(Code)

SYSTEM_SUPERTYPES
final protected static int SYSTEM_SUPERTYPES(Code)

SYSTEM_TABLEPRIVILEGES
final protected static int SYSTEM_TABLEPRIVILEGES(Code)

SYSTEM_TABLES
final protected static int SYSTEM_TABLES(Code)

SYSTEM_TABLETYPES
final protected static int SYSTEM_TABLETYPES(Code)

SYSTEM_TABLE_CONSTRAINTS
final protected static int SYSTEM_TABLE_CONSTRAINTS(Code)

SYSTEM_TEXTTABLES
final protected static int SYSTEM_TEXTTABLES(Code)

SYSTEM_TRIGGERCOLUMNS
final protected static int SYSTEM_TRIGGERCOLUMNS(Code)

SYSTEM_TRIGGERS
final protected static int SYSTEM_TRIGGERS(Code)

SYSTEM_TYPEINFO
final protected static int SYSTEM_TYPEINFO(Code)

SYSTEM_UDTATTRIBUTES
final protected static int SYSTEM_UDTATTRIBUTES(Code)

SYSTEM_UDTS
final protected static int SYSTEM_UDTS(Code)

SYSTEM_USAGE_PRIVILEGES
final protected static int SYSTEM_USAGE_PRIVILEGES(Code)

SYSTEM_USERS
final protected static int SYSTEM_USERS(Code)

SYSTEM_VERSIONCOLUMNS
final protected static int SYSTEM_VERSIONCOLUMNS(Code)

SYSTEM_VIEWS
final protected static int SYSTEM_VIEWS(Code)

SYSTEM_VIEW_COLUMN_USAGE
final protected static int SYSTEM_VIEW_COLUMN_USAGE(Code)

SYSTEM_VIEW_ROUTINE_USAGE
final protected static int SYSTEM_VIEW_ROUTINE_USAGE(Code)

SYSTEM_VIEW_TABLE_USAGE
final protected static int SYSTEM_VIEW_TABLE_USAGE(Code)

database
final protected Database database(Code)
Database for which to produce tables

isDirty
protected boolean isDirty(Code)
Simple object-wide flag indicating that all of this object's cached data is dirty.

sysTableNames
final protected static String[] sysTableNames(Code)
system table names strictly in order of their ids

sysTableNamesMap
final protected static IntValueHashMap sysTableNamesMap(Code)
Map: table name => table id

withContent
protected boolean withContent(Code)
state flag -- if true, contentful tables are to be produced, else empty (surrogate) tables are to be produced. This allows faster database startup where user views reference system tables and faster system table structural reflection for table metadata.

Constructor Detail
DatabaseInformation
DatabaseInformation(Database db) throws HsqlException(Code)
Constructs a new DatabaseInformation instance which knows the names of all system tables (isSystemTable()) but simpy returns null for all getSystemTable() requests.

Parameters:
  db - The Database object for which to produce system tables
throws:
  HsqlException - never (required for descendents)

Method Detail
getSysTableID
static int getSysTableID(String token)(Code)

getSystemTable
Table getSystemTable(Session session, String name) throws HsqlException(Code)
Retrieves a table with the specified name whose content may depend on the execution context indicated by the session argument as well as the current value of withContent.

Parameters:
  session - the context in which to produce the table
Parameters:
  name - the name of the table to produce
throws:
  HsqlException - if a database access error occurs a table corresponding to the name and session arguments, ornull if there is no such table to be produced

isSystemTable
final boolean isSystemTable(String name)(Code)
Tests if the specified name is that of a system table.

Parameters:
  name - the name to test true if the specified name is that of a system table

newDatabaseInformation
final static DatabaseInformation newDatabaseInformation(Database db) throws HsqlException(Code)
Factory method retuns the fullest system table producer implementation available. This instantiates implementations beginning with the most complete, finally choosing an empty table producer implemenation (this class) if no better instance can be constructed.
Parameters:
  db - The Database object for which to produce system tables the fullest system table producerimplementation available
throws:
  HsqlException - never - required by constructor

setDirty
final void setDirty()(Code)
Controls caching of all tables produced by this object.
Subclasses are free to ignore this, since they may choose an implementation that does not dynamically generate and/or cache table content on an as-needed basis.
If not ignored, this call indicates to this object that all cached table data may be dirty, requiring a complete cache clear at some point.
Subclasses are free to delay cache clear until next getSystemTable(). However, subclasses may have to be aware of additional methods with semantics similar to getSystemTable() and act accordingly (e.g. clearing earlier than next invocation of getSystemTable()).

setWithContent
final void setWithContent(boolean withContent)(Code)
Switches this table producer between producing empty (surrogate) or contentful tables.

Parameters:
  withContent - if true, then produce contentful tables, elseproduce emtpy (surrogate) tables

Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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