Examples with Iterator org.hsqldb_voltpatches.lib.Iterator used on opensource projects

Example 91 with Iterator

use of org.hsqldb_voltpatches.lib.Iterator in project voltdb by VoltDB.

the class DatabaseManager method deRegisterServer.

/**
     * Deregisters a server as serving a given database. Not yet used.
     */
private static void deRegisterServer(Server server, Database db) {
    Iterator it = serverMap.values().iterator();
    for (; it.hasNext(); ) {
        HashSet databases = (HashSet) it.next();
        databases.remove(db);
        if (databases.isEmpty()) {
            it.remove();
        }
    }
}

Example 92 with Iterator

use of org.hsqldb_voltpatches.lib.Iterator in project voltdb by VoltDB.

the class DatabaseManager method notifyServers.

/**
     * Notifies all servers that serve the database that the database has been
     * shutdown.
     */
private static void notifyServers(Database db) {
    Iterator it = serverMap.keySet().iterator();
    for (; it.hasNext(); ) {
        Server server = (Server) it.next();
        HashSet databases = (HashSet) serverMap.get(server);
        if (databases.contains(db)) {
        // A VoltDB extension to disable a package dependency
        /* disable 2 lines ...
                server.notify(ServerConstants.SC_DATABASE_SHUTDOWN,
                              db.databaseID);
... disabled 2 lines */
        // End of VoltDB extension
        }
    }
}

Example 93 with Iterator

use of org.hsqldb_voltpatches.lib.Iterator in project voltdb by VoltDB.

the class DatabaseInformationFull method TRIGGERED_UPDATE_COLUMNS.

Table TRIGGERED_UPDATE_COLUMNS() {
    Table t = sysTables[TRIGGERED_UPDATE_COLUMNS];
    if (t == null) {
        t = createBlankTable(sysTableHsqlNames[TRIGGERED_UPDATE_COLUMNS]);
        addColumn(t, "TRIGGER_CATALOG", SQL_IDENTIFIER);
        addColumn(t, "TRIGGER_SCHEMA", SQL_IDENTIFIER);
        // not null
        addColumn(t, "TRIGGER_NAME", SQL_IDENTIFIER);
        // not null
        addColumn(t, "EVENT_OBJECT_CATALOG", SQL_IDENTIFIER);
        addColumn(t, "EVENT_OBJECT_SCHEMA", SQL_IDENTIFIER);
        addColumn(t, "EVENT_OBJECT_TABLE", SQL_IDENTIFIER);
        // not null
        addColumn(t, "EVENT_OBJECT_COLUMN", SQL_IDENTIFIER);
        HsqlName name = HsqlNameManager.newInfoSchemaObjectName(sysTableHsqlNames[TRIGGERED_UPDATE_COLUMNS].name, false, SchemaObject.INDEX);
        t.createPrimaryKey(name, new int[] { 0, 1, 2, 3, 4, 5, 6 }, false);
        return t;
    }
    PersistentStore store = database.persistentStoreCollection.getStore(t);
    // column number mappings
    final int trigger_catalog = 0;
    final int trigger_schema = 1;
    final int trigger_name = 2;
    final int event_object_catalog = 3;
    final int event_object_schema = 4;
    final int event_object_table = 5;
    final int event_object_column = 6;
    Iterator it;
    Object[] row;
    it = database.schemaManager.databaseObjectIterator(SchemaObject.TRIGGER);
    while (it.hasNext()) {
        TriggerDef trigger = (TriggerDef) it.next();
        if (!session.getGrantee().isAccessible(trigger)) {
            continue;
        }
        int[] colIndexes = trigger.getUpdateColumnIndexes();
        if (colIndexes == null) {
            continue;
        }
        for (int i = 0; i < colIndexes.length; i++) {
            ColumnSchema column = trigger.getTable().getColumn(colIndexes[i]);
            row = t.getEmptyRowData();
            row[trigger_catalog] = database.getCatalogName().name;
            row[trigger_schema] = trigger.getSchemaName().name;
            row[trigger_name] = trigger.getName().name;
            row[event_object_catalog] = database.getCatalogName().name;
            row[event_object_schema] = trigger.getTable().getSchemaName().name;
            row[event_object_table] = trigger.getTable().getName().name;
            row[event_object_column] = column.getNameString();
            t.insertSys(store, row);
        }
    }
    // Initialization
    return t;
}

Example 94 with Iterator

use of org.hsqldb_voltpatches.lib.Iterator in project voltdb by VoltDB.

the class DatabaseInformationFull method SYSTEM_PROPERTIES.

/**
     * Retrieves a <code>Table</code> object describing the capabilities
     * and operating parameter properties for the engine hosting this
     * database, as well as their applicability in terms of scope and
     * name space. <p>
     *
     * Reported properties include certain predefined <code>Database</code>
     * properties file values as well as certain database scope
     * attributes. <p>
     *
     * It is intended that all <code>Database</code> attributes and
     * properties that can be set via the database properties file,
     * JDBC connection properties or SQL SET/ALTER statements will
     * eventually be reported here or, where more applicable, in an
     * ANSI/ISO conforming feature info base table in the defintion
     * schema. <p>
     *
     * Currently, the database properties reported are: <p>
     *
     * <OL>
     *     <LI>hsqldb.cache_file_scale - the scaling factor used to translate data and index structure file pointers
     *     <LI>hsqldb.cache_scale - base-2 exponent scaling allowable cache row count
     *     <LI>hsqldb.cache_size_scale - base-2 exponent scaling allowable cache byte count
     *     <LI>hsqldb.cache_version -
     *     <LI>hsqldb.catalogs - whether to report the database catalog (database uri)
     *     <LI>hsqldb.compatible_version -
     *     <LI>hsqldb.files_readonly - whether the database is in files_readonly mode
     *     <LI>hsqldb.gc_interval - # new records forcing gc ({0|NULL}=>never)
     *     <LI>hsqldb.max_nio_scale - scale factor for cache nio mapped buffers
     *     <LI>hsqldb.nio_data_file - whether cache uses nio mapped buffers
     *     <LI>hsqldb.original_version -
     *     <LI>sql.enforce_strict_size - column length specifications enforced strictly (raise exception on overflow)?
     *     <LI>textdb.all_quoted - default policy regarding whether to quote all character field values
     *     <LI>textdb.cache_scale - base-2 exponent scaling allowable cache row count
     *     <LI>textdb.cache_size_scale - base-2 exponent scaling allowable cache byte count
     *     <LI>textdb.encoding - default TEXT table file encoding
     *     <LI>textdb.fs - default field separator
     *     <LI>textdb.vs - default varchar field separator
     *     <LI>textdb.lvs - default long varchar field separator
     *     <LI>textdb.ignore_first - default policy regarding whether to ignore the first line
     *     <LI>textdb.quoted - default policy regarding treatement character field values that _may_ require quoting
     *     <LI>IGNORECASE - create table VARCHAR_IGNORECASE?
     *     <LI>LOGSIZSE - # bytes to which REDO log grows before auto-checkpoint
     *     <LI>REFERENTIAL_INTEGITY - currently enforcing referential integrity?
     *     <LI>SCRIPTFORMAT - 0 : TEXT, 1 : BINARY, ...
     *     <LI>WRITEDELAY - does REDO log currently use buffered write strategy?
     * </OL> <p>
     *
     * @return table describing database and session operating parameters
     *      and capabilities
     */
Table SYSTEM_PROPERTIES() {
    Table t = sysTables[SYSTEM_PROPERTIES];
    if (t == null) {
        t = createBlankTable(sysTableHsqlNames[SYSTEM_PROPERTIES]);
        addColumn(t, "PROPERTY_SCOPE", CHARACTER_DATA);
        addColumn(t, "PROPERTY_NAMESPACE", CHARACTER_DATA);
        addColumn(t, "PROPERTY_NAME", CHARACTER_DATA);
        addColumn(t, "PROPERTY_VALUE", CHARACTER_DATA);
        addColumn(t, "PROPERTY_CLASS", CHARACTER_DATA);
        // order PROPERTY_SCOPE, PROPERTY_NAMESPACE, PROPERTY_NAME
        // true PK
        HsqlName name = HsqlNameManager.newInfoSchemaObjectName(sysTableHsqlNames[SYSTEM_PROPERTIES].name, false, SchemaObject.INDEX);
        t.createPrimaryKey(name, new int[] { 0, 1, 2 }, true);
        return t;
    }
    // column number mappings
    final int iscope = 0;
    final int ins = 1;
    final int iname = 2;
    final int ivalue = 3;
    final int iclass = 4;
    //
    PersistentStore store = database.persistentStoreCollection.getStore(t);
    // calculated column values
    String scope;
    String nameSpace;
    // intermediate holders
    Object[] row;
    HsqlDatabaseProperties props;
    // First, we want the names and values for
    // all JDBC capabilities constants
    scope = "SESSION";
    props = database.getProperties();
    nameSpace = "database.properties";
    // boolean properties
    Iterator it = props.getUserDefinedPropertyData().iterator();
    while (it.hasNext()) {
        Object[] metaData = (Object[]) it.next();
        row = t.getEmptyRowData();
        row[iscope] = scope;
        row[ins] = nameSpace;
        row[iname] = metaData[HsqlProperties.indexName];
        row[ivalue] = props.getProperty((String) row[iname]);
        row[iclass] = metaData[HsqlProperties.indexClass];
        t.insertSys(store, row);
    }
    row = t.getEmptyRowData();
    row[iscope] = scope;
    row[ins] = nameSpace;
    row[iname] = "SCRIPTFORMAT";
    try {
        row[ivalue] = ScriptWriterBase.LIST_SCRIPT_FORMATS[database.logger.getScriptType()];
    } catch (Exception e) {
    }
    row[iclass] = "java.lang.String";
    t.insertSys(store, row);
    // write delay
    row = t.getEmptyRowData();
    row[iscope] = scope;
    row[ins] = nameSpace;
    row[iname] = "WRITE_DELAY";
    row[ivalue] = "" + database.logger.getWriteDelay();
    row[iclass] = "int";
    t.insertSys(store, row);
    // ignore case
    row = t.getEmptyRowData();
    row[iscope] = scope;
    row[ins] = nameSpace;
    row[iname] = "IGNORECASE";
    row[ivalue] = database.isIgnoreCase() ? "true" : "false";
    row[iclass] = "boolean";
    t.insertSys(store, row);
    // referential integrity
    row = t.getEmptyRowData();
    row[iscope] = scope;
    row[ins] = nameSpace;
    row[iname] = "REFERENTIAL_INTEGRITY";
    row[ivalue] = database.isReferentialIntegrity() ? "true" : "false";
    row[iclass] = "boolean";
    t.insertSys(store, row);
    return t;
}

Example 95 with Iterator

use of org.hsqldb_voltpatches.lib.Iterator in project voltdb by VoltDB.

the class DatabaseInformationFull method VIEW_TABLE_USAGE.

/**
     * The VIEW_TABLE_USAGE table has one row for each table identified
     * by a <table name> simply contained in a <table reference>
     * that is contained in the &lt;query expression&gt; of a view. <p>
     *
     * <b>Definition</b><p>
     *
     * <pre class="SqlCodeExample">
     * CREATE TABLE SYSTEM_VIEW_TABLE_USAGE (
     *      VIEW_CATALOG    VARCHAR NULL,
     *      VIEW_SCHEMA     VARCHAR NULL,
     *      VIEW_NAME       VARCHAR NULL,
     *      TABLE_CATALOG   VARCHAR NULL,
     *      TABLE_SCHEMA    VARCHAR NULL,
     *      TABLE_NAME      VARCHAR NULL,
     *      UNIQUE( VIEW_CATALOG, VIEW_SCHEMA, VIEW_NAME,
     *              TABLE_CATALOG, TABLE_SCHEMA, TABLE_NAME )
     * )
     * </pre>
     *
     * <b>Description:</b><p>
     *
     * <ol>
     * <li> The values of VIEW_CATALOG, VIEW_SCHEMA, and VIEW_NAME are the
     *      catalog name, unqualified schema name, and qualified identifier,
     *      respectively, of the view being described. <p>
     *
     * <li> The values of TABLE_CATALOG, TABLE_SCHEMA, and TABLE_NAME are the
     *      catalog name, unqualified schema name, and qualified identifier,
     *      respectively, of a table identified by a &lt;table name&gt;
     *      simply contained in a &lt;table reference&gt; that is contained in
     *      the &lt;query expression&gt; of the view being described.
     * </ol>
     *
     * @return Table
     */
Table VIEW_TABLE_USAGE() {
    Table t = sysTables[VIEW_TABLE_USAGE];
    if (t == null) {
        t = createBlankTable(sysTableHsqlNames[VIEW_TABLE_USAGE]);
        addColumn(t, "VIEW_CATALOG", SQL_IDENTIFIER);
        addColumn(t, "VIEW_SCHEMA", SQL_IDENTIFIER);
        // not null
        addColumn(t, "VIEW_NAME", SQL_IDENTIFIER);
        addColumn(t, "TABLE_CATALOG", SQL_IDENTIFIER);
        addColumn(t, "TABLE_SCHEMA", SQL_IDENTIFIER);
        // not null
        addColumn(t, "TABLE_NAME", SQL_IDENTIFIER);
        // false PK, as VIEW_CATALOG, VIEW_SCHEMA, TABLE_CATALOG, and/or
        // TABLE_SCHEMA may be NULL
        HsqlName name = HsqlNameManager.newInfoSchemaObjectName(sysTableHsqlNames[VIEW_TABLE_USAGE].name, false, SchemaObject.INDEX);
        t.createPrimaryKey(name, new int[] { 0, 1, 2, 3, 4, 5 }, false);
        return t;
    }
    // Column number mappings
    final int view_catalog = 0;
    final int view_schema = 1;
    final int view_name = 2;
    final int table_catalog = 3;
    final int table_schema = 4;
    final int table_name = 5;
    //
    PersistentStore store = database.persistentStoreCollection.getStore(t);
    Iterator tables;
    Table table;
    Object[] row;
    // Initialization
    tables = database.schemaManager.databaseObjectIterator(SchemaObject.TABLE);
    // Do it.
    while (tables.hasNext()) {
        table = (Table) tables.next();
        if (table.isView() && session.getGrantee().isFullyAccessibleByRole(table)) {
        // $FALL-THROUGH$
        } else {
            continue;
        }
        OrderedHashSet references = table.getReferences();
        for (int i = 0; i < references.size(); i++) {
            HsqlName refName = (HsqlName) references.get(i);
            if (!session.getGrantee().isFullyAccessibleByRole(refName)) {
                continue;
            }
            if (refName.type != SchemaObject.TABLE) {
                continue;
            }
            row = t.getEmptyRowData();
            row[view_catalog] = database.getCatalogName().name;
            row[view_schema] = table.getSchemaName().name;
            row[view_name] = table.getName().name;
            row[table_catalog] = database.getCatalogName().name;
            row[table_schema] = refName.schema.name;
            row[table_name] = refName.name;
            try {
                t.insertSys(store, row);
            } catch (HsqlException e) {
            }
        }
    }
    return t;
}