org.h2.schema

Class MetaSchema

java.lang.Object

org.h2.engine.DbObject

org.h2.schema.Schema

org.h2.schema.MetaSchema

All Implemented Interfaces:

HasSQL

Direct Known Subclasses:

InformationSchema, PgCatalogSchema

public abstract class MetaSchema
extends Schema

Meta data schema.

Field Summary

Fields inherited from class org.h2.engine.DbObject

AGGREGATE, comment, COMMENT, CONSTANT, CONSTRAINT, database, DOMAIN, FUNCTION_ALIAS, INDEX, RIGHT, ROLE, SCHEMA, SEQUENCE, SETTING, SYNONYM, TABLE_OR_VIEW, trace, TRIGGER, USER

Fields inherited from interface org.h2.util.HasSQL

ADD_PLAN_INFORMATION, DEFAULT_SQL_FLAGS, NO_CASTS, QUOTE_ONLY_WHEN_REQUIRED, REPLACE_LOBS_FOR_TRACE, TRACE_SQL_FLAGS

Constructor Summary

Constructors

Constructor and Description
MetaSchema(Database database, int id, java.lang.String schemaName, User owner) Creates a new instance of meta data schema.

Method Summary

Modifier and Type	Method and Description
Table	findTableOrView(SessionLocal session, java.lang.String name) Try to find a table or view with this name.
java.util.Collection<Table>	getAllTablesAndViews(SessionLocal session) Get all tables and views.
protected abstract java.util.Map<java.lang.String,Table>	getMap(SessionLocal session) Returns map of tables in this schema.
Table	getTableOrView(SessionLocal session, java.lang.String name) Get the table or view with the given name.
Table	getTableOrViewByName(SessionLocal session, java.lang.String name) Get the table with the given name, if any.
boolean	isEmpty() Return whether is this schema is empty (does not contain any objects).

Methods inherited from class org.h2.schema.Schema

add, canDrop, createSynonym, createTable, createTableLink, findAggregate, findConstant, findConstraint, findDomain, findFunction, findFunctionOrAggregate, findIndex, findSequence, findTrigger, freeUniqueName, getAll, getAll, getAllConstants, getAllConstraints, getAllDomains, getAllFunctionsAndAggregates, getAllIndexes, getAllSequences, getAllSynonyms, getAllTriggers, getChildren, getConstant, getConstraint, getCreateSQL, getDomain, getIndex, getOwner, getSequence, getSynonym, getTableEngineParams, getType, getUniqueConstraintName, getUniqueDomainConstraintName, getUniqueIndexName, remove, removeChildrenAndResources, rename, reserveUniqueName, resolveTableOrView, resolveTableOrView, setTableEngineParams

Methods inherited from class org.h2.engine.DbObject

checkRename, getComment, getCreateSQLForCopy, getCreateSQLForMeta, getDatabase, getDropSQL, getId, getModificationId, getName, getSQL, getSQL, invalidate, isTemporary, isValid, rename, setComment, setModified, setObjectName, setTemporary, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.h2.util.HasSQL

getTraceSQL

Constructor Detail

MetaSchema

public MetaSchema(Database database,
                  int id,
                  java.lang.String schemaName,
                  User owner)

Creates a new instance of meta data schema.

Parameters:

database - the database

id - the object id

schemaName - the schema name

owner - the owner of the schema

Method Detail

findTableOrView

public Table findTableOrView(SessionLocal session,
                             java.lang.String name)

Description copied from class: Schema

Try to find a table or view with this name. This method returns null if no object with this name exists. Local temporary tables are also returned. Synonyms are not returned or resolved.

Overrides:

findTableOrView in class Schema

Parameters:

session - the session

name - the object name

Returns:

the object or null

getAllTablesAndViews

public java.util.Collection<Table> getAllTablesAndViews(SessionLocal session)

Description copied from class: Schema

Get all tables and views.

Overrides:

getAllTablesAndViews in class Schema

Parameters:

session - the session, null to exclude meta tables

Returns:

a (possible empty) list of all objects

getTableOrView

public Table getTableOrView(SessionLocal session,
                            java.lang.String name)

Description copied from class: Schema

Get the table or view with the given name. Local temporary tables are also returned.

Overrides:

getTableOrView in class Schema

Parameters:

session - the session

name - the table or view name

Returns:

the table or view

getTableOrViewByName

public Table getTableOrViewByName(SessionLocal session,
                                  java.lang.String name)

Description copied from class: Schema

Get the table with the given name, if any.

Overrides:

getTableOrViewByName in class Schema

Parameters:

session - the session

name - the table name

Returns:

the table or null if not found

getMap

protected abstract java.util.Map<java.lang.String,Table> getMap(SessionLocal session)

Returns map of tables in this schema.

Parameters:

session - the session

Returns:

map of tables in this schema

isEmpty

public boolean isEmpty()

Description copied from class: Schema

Return whether is this schema is empty (does not contain any objects).

Overrides:

isEmpty in class Schema

Returns:

true if this schema is empty, false otherwise