Package org.apache.s4.schema

Examples of org.apache.s4.schema.Schema

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            }
            database.setReferentialIntegrity(value == 1);
            break;
        }
        case SetTypes.SCHEMA: {
            Schema schema = database.getSchema(stringValue);
            session.setCurrentSchema(schema);
            break;
        }
        case SetTypes.SCHEMA_SEARCH_PATH: {
            session.setSchemaSearchPath(stringValueList);
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    public int update() {
        session.getUser().checkAdmin();
        session.commit(true);
        Database db = session.getDatabase();
        Schema schema = db.findSchema(schemaName);
        if (schema == null) {
            if (!ifExists) {
                throw DbException.get(ErrorCode.SCHEMA_NOT_FOUND_1, schemaName);
            }
        } else {
            if (!schema.canDrop()) {
                throw DbException.get(ErrorCode.SCHEMA_CAN_NOT_BE_DROPPED_1, schemaName);
            }
            db.removeDatabaseObject(session, schema);
        }
        return 0;
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            }
        } else {
            schemaName = v0.getString();
            sequenceName = v1.getString();
        }
        Schema s = database.findSchema(schemaName);
        if (s == null) {
            schemaName = StringUtils.toUpperEnglish(schemaName);
            s = database.getSchema(schemaName);
        }
        Sequence seq = s.findSequence(sequenceName);
        if (seq == null) {
            sequenceName = StringUtils.toUpperEnglish(sequenceName);
            seq = s.getSequence(sequenceName);
        }
        return seq;
    }
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        }
    }

    public Expression optimize(Session session) {
        if (columnResolver == null) {
            Schema schema = session.getDatabase().findSchema(
                    tableAlias == null ? session.getCurrentSchemaName() : tableAlias);
            if (schema != null) {
                Constant constant = schema.findConstant(columnName);
                if (constant != null) {
                    return constant.getValue();
                }
            }
            String name = columnName;
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     * @param query the query
     * @param topQuery the top level query
     * @return the view table
     */
    public static TableView createTempView(Session session, User owner, String name, Query query, Query topQuery) {
        Schema mainSchema = session.getDatabase().getSchema(Constants.SCHEMA_MAIN);
        String querySQL = query.getPlanSQL();
        TableView v = new TableView(mainSchema, 0, name, querySQL, query.getParameters(), null, session,
                false);
        if (v.createException != null) {
            throw v.createException;
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        cols.add(new Column("TYPE", Value.INT));
        cols.add(new Column("PARENT", Value.INT));
        cols.add(new Column("HEAD", Value.INT));
        cols.add(new Column("OPTIONS", Value.STRING));
        cols.add(new Column("COLUMNS", Value.STRING));
        metaSchema = new Schema(database, 0, "", null, true);
        data.schema = metaSchema;
        data.tableName = "PAGE_INDEX";
        data.id = META_TABLE_ID;
        data.temporary = false;
        data.persistData = true;
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    private int childCount;

    ResultTempTable(Session session, SortOrder sort) {
        this.session = session;
        this.sort = sort;
        Schema schema = session.getDatabase().getSchema(Constants.SCHEMA_MAIN);
        Column column = new Column(COLUMN_NAME, Value.ARRAY);
        column.setNullable(false);
        CreateTableData data = new CreateTableData();
        data.columns.add(column);
        data.id = session.getDatabase().allocateObjectId();
        data.tableName = "TEMP_RESULT_SET_" + data.id;
        data.temporary = true;
        data.persistIndexes = false;
        data.persistData = true;
        data.create = true;
        data.session = session;
        table = (RegularTable) schema.createTable(data);
        int indexId = session.getDatabase().allocateObjectId();
        IndexColumn indexColumn = new IndexColumn();
        indexColumn.column = column;
        indexColumn.columnName = COLUMN_NAME;
        IndexType indexType;
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        return command;
    }

    private AlterSchemaRename parseAlterSchema() {
        String schemaName = readIdentifierWithSchema();
        Schema old = getSchema();
        AlterSchemaRename command = new AlterSchemaRename(session);
        command.setOldSchema(getSchema(schemaName));
        read("RENAME");
        read("TO");
        String newName = readIdentifierWithSchema(old.getName());
        checkSchema(old);
        command.setNewName(newName);
        return command;
    }
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            return table;
        }
        String[] schemaNames = session.getSchemaSearchPath();
        if (schemaNames != null) {
            for (String name : schemaNames) {
                Schema s = database.getSchema(name);
                table = s.findTableOrView(session, tableName);
                if (table != null) {
                    return table;
                }
            }
        }
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    }

    private AlterTableAlterColumn parseAlterTableAddColumn(Table table) {
        readIf("COLUMN");
        boolean ifNotExists = readIfNoExists();
        Schema schema = table.getSchema();
        AlterTableAlterColumn command = new AlterTableAlterColumn(session, schema);
        command.setIfNotExists(ifNotExists);
        command.setType(CommandInterface.ALTER_TABLE_ADD_COLUMN);
        command.setTable(table);
        String columnName = readColumnIdentifier();
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