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

Example 1 with Iterator

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

the class Schema method getSequenceRestartSQL.

public String[] getSequenceRestartSQL() {
    HsqlArrayList list = new HsqlArrayList();
    Iterator it = sequenceLookup.map.values().iterator();
    while (it.hasNext()) {
        NumberSequence sequence = (NumberSequence) it.next();
        String ddl = sequence.getRestartSQL();
        list.add(ddl);
    }
    String[] array = new String[list.size()];
    list.toArray(array);
    return array;
}

Example 2 with Iterator

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

the class SchemaManager method getSQLArray.

public String[] getSQLArray() {
    OrderedHashSet resolved = new OrderedHashSet();
    OrderedHashSet unresolved = new OrderedHashSet();
    HsqlArrayList list = new HsqlArrayList();
    Iterator schemas = schemaMap.values().iterator();
    while (schemas.hasNext()) {
        Schema schema = (Schema) schemas.next();
        if (isSystemSchema(schema.name.name)) {
            continue;
        }
        if (isLobsSchema(schema.name.name)) {
            continue;
        }
        list.addAll(schema.getSQLArray(resolved, unresolved));
    }
    while (true) {
        Iterator it = unresolved.iterator();
        if (!it.hasNext()) {
            break;
        }
        while (it.hasNext()) {
            SchemaObject object = (SchemaObject) it.next();
            OrderedHashSet references = object.getReferences();
            boolean isResolved = true;
            for (int j = 0; j < references.size(); j++) {
                HsqlName name = (HsqlName) references.get(j);
                if (name.type == SchemaObject.COLUMN || name.type == SchemaObject.CONSTRAINT) {
                    name = name.parent;
                }
                if (!resolved.contains(name)) {
                    isResolved = false;
                    break;
                }
            }
            if (isResolved) {
                if (object.getType() == SchemaObject.TABLE) {
                    list.addAll(((Table) object).getSQL(resolved, unresolved));
                } else {
                    list.add(object.getSQL());
                    resolved.add(object.getName());
                }
                it.remove();
            }
        }
    }
    schemas = schemaMap.values().iterator();
    while (schemas.hasNext()) {
        Schema schema = (Schema) schemas.next();
        if (database.schemaManager.isSystemSchema(schema.name.name)) {
            continue;
        }
        if (database.schemaManager.isLobsSchema(schema.name.name)) {
        //                continue;
        }
        list.addAll(schema.getTriggerSQL());
        list.addAll(schema.getSequenceRestartSQL());
    }
    if (defaultSchemaHsqlName != null) {
        StringBuffer sb = new StringBuffer();
        sb.append(Tokens.T_SET).append(' ').append(Tokens.T_DATABASE);
        sb.append(' ').append(Tokens.T_DEFAULT).append(' ');
        sb.append(Tokens.T_INITIAL).append(' ').append(Tokens.T_SCHEMA);
        sb.append(' ').append(defaultSchemaHsqlName.statementName);
        list.add(sb.toString());
    }
    String[] array = new String[list.size()];
    list.toArray(array);
    return array;
}

Example 3 with Iterator

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

the class SchemaManager method clearStructures.

void clearStructures() {
    Iterator it = schemaMap.values().iterator();
    while (it.hasNext()) {
        Schema schema = (Schema) it.next();
        schema.clearStructures();
    }
}

Example 4 with Iterator

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

the class SchemaManager method getCascadingSchemaReferences.

//
private void getCascadingSchemaReferences(HsqlName schema, OrderedHashSet set) {
    Iterator mainIterator = referenceMap.keySet().iterator();
    while (mainIterator.hasNext()) {
        HsqlName name = (HsqlName) mainIterator.next();
        if (name.schema != schema) {
            continue;
        }
        getCascadingReferences(name, set);
    }
    for (int i = 0; i < set.size(); i++) {
        HsqlName name = (HsqlName) set.get(i);
        if (name.schema == schema) {
            set.remove(i);
            i--;
        }
    }
}

Example 5 with Iterator

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

the class DatabaseInformationFull method SCHEMATA.

/**
     * SCHEMATA<p>
     *
     * <b>Function</b><p>
     *
     * The SCHEMATA view has one row for each accessible schema. <p>
     *
     * <b>Definition</b><p>
     *
     * <pre class="SqlCodeExample">
     * CREATE TABLE SCHEMATA (
     *      CATALOG_NAME INFORMATION_SCHEMA.SQL_IDENTIFIER,
     *      SCHEMA_NAME INFORMATION_SCHEMA.SQL_IDENTIFIER,
     *      SCHEMA_OWNER INFORMATION_SCHEMA.SQL_IDENTIFIER
     *          CONSTRAINT SCHEMA_OWNER_NOT_NULL
     *              NOT NULL,
     *      DEFAULT_CHARACTER_SET_CATALOG INFORMATION_SCHEMA.SQL_IDENTIFIER
     *          CONSTRAINT DEFAULT_CHARACTER_SET_CATALOG_NOT_NULL
     *              NOT NULL,
     *      DEFAULT_CHARACTER_SET_SCHEMA INFORMATION_SCHEMA.SQL_IDENTIFIER
     *          CONSTRAINT DEFAULT_CHARACTER_SET_SCHEMA_NOT_NULL
     *              NOT NULL,
     *      DEFAULT_CHARACTER_SET_NAME INFORMATION_SCHEMA.SQL_IDENTIFIER
     *          CONSTRAINT DEFAULT_CHARACTER_SET_NAME_NOT_NULL
     *              NOT NULL,
     *      SQL_PATH INFORMATION_SCHEMA.CHARACTER_DATA,
     *
     *      CONSTRAINT SCHEMATA_PRIMARY_KEY
     *          PRIMARY KEY ( CATALOG_NAME, SCHEMA_NAME ),
     *      CONSTRAINT SCHEMATA_FOREIGN_KEY_AUTHORIZATIONS
     *          FOREIGN KEY ( SCHEMA_OWNER )
     *              REFERENCES AUTHORIZATIONS,
     *      CONSTRAINT SCHEMATA_FOREIGN_KEY_CATALOG_NAMES
     *          FOREIGN KEY ( CATALOG_NAME )
     *              REFERENCES CATALOG_NAMES
     *      )
     * </pre>
     *
     * <b>Description</b><p>
     *
     * <ol>
     *      <li>The value of CATALOG_NAME is the name of the catalog of the
     *          schema described by this row.<p>
     *
     *      <li>The value of SCHEMA_NAME is the unqualified schema name of
     *          the schema described by this row.<p>
     *
     *      <li>The values of SCHEMA_OWNER are the authorization identifiers
     *          that own the schemata.<p>
     *
     *      <li>The values of DEFAULT_CHARACTER_SET_CATALOG,
     *          DEFAULT_CHARACTER_SET_SCHEMA, and DEFAULT_CHARACTER_SET_NAME
     *          are the catalog name, unqualified schema name, and qualified
     *          identifier, respectively, of the default character set for
     *          columns and domains in the schemata.<p>
     *
     *      <li>Case:<p>
     *          <ul>
     *              <li>If &lt;schema path specification&gt; was specified in
     *                  the &lt;schema definition&gt; that defined the schema
     *                  described by this row and the character representation
     *                  of the &lt;schema path specification&gt; can be
     *                  represented without truncation, then the value of
     *                  SQL_PATH is that character representation.<p>
     *
     *              <li>Otherwise, the value of SQL_PATH is the null value.
     *         </ul>
     * </ol>
     *
     * @return Table
     */
Table SCHEMATA() {
    Table t = sysTables[SCHEMATA];
    if (t == null) {
        t = createBlankTable(sysTableHsqlNames[SCHEMATA]);
        addColumn(t, "CATALOG_NAME", SQL_IDENTIFIER);
        addColumn(t, "SCHEMA_NAME", SQL_IDENTIFIER);
        addColumn(t, "SCHEMA_OWNER", SQL_IDENTIFIER);
        addColumn(t, "DEFAULT_CHARACTER_SET_CATALOG", SQL_IDENTIFIER);
        addColumn(t, "DEFAULT_CHARACTER_SET_SCHEMA", SQL_IDENTIFIER);
        addColumn(t, "DEFAULT_CHARACTER_SET_NAME", SQL_IDENTIFIER);
        addColumn(t, "SQL_PATH", CHARACTER_DATA);
        // order: CATALOG_NAME, SCHEMA_NAME
        // false PK, as rows may have NULL CATALOG_NAME
        HsqlName name = HsqlNameManager.newInfoSchemaObjectName(sysTableHsqlNames[SCHEMATA].name, false, SchemaObject.INDEX);
        t.createPrimaryKey(name, new int[] { 0, 1 }, false);
        return t;
    }
    PersistentStore store = database.persistentStoreCollection.getStore(t);
    // Intermediate holders
    Iterator schemas;
    String schema;
    String dcsSchema = SqlInvariants.INFORMATION_SCHEMA;
    String dcsName = ValuePool.getString("UTF16");
    String sqlPath = null;
    Grantee user = session.getGrantee();
    Object[] row;
    // column number mappings
    final int schema_catalog = 0;
    final int schema_name = 1;
    final int schema_owner = 2;
    final int default_character_set_catalog = 3;
    final int default_character_set_schema = 4;
    final int default_character_set_name = 5;
    final int sql_path = 6;
    // Initialization
    schemas = database.schemaManager.fullSchemaNamesIterator();
    // Do it.
    while (schemas.hasNext()) {
        schema = (String) schemas.next();
        if (!user.hasSchemaUpdateOrGrantRights(schema)) {
            continue;
        }
        row = t.getEmptyRowData();
        row[schema_catalog] = database.getCatalogName().name;
        row[schema_name] = schema;
        row[schema_owner] = database.schemaManager.toSchemaOwner(schema).getNameString();
        row[default_character_set_catalog] = database.getCatalogName().name;
        row[default_character_set_schema] = dcsSchema;
        row[default_character_set_name] = dcsName;
        row[sql_path] = sqlPath;
        t.insertSys(store, row);
    }
    return t;
}