Package org.h2.engine

Examples of org.h2.engine.Database

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    }

    public int update() {
        session.getUser().checkAdmin();
        session.commit(true);
        Database db = session.getDatabase();
        UserAggregate aggregate = db.findAggregate(name);
        if (aggregate == null) {
            if (!ifExists) {
                throw DbException.get(ErrorCode.AGGREGATE_NOT_FOUND_1, name);
            }
        } else {
            db.removeDatabaseObject(session, aggregate);
        }
        return 0;
    }
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            FileUtils.delete(file);
        }
    }

    private void initStore() {
        Database db = session.getDatabase();
        // script files are always in text format
        String file = getFileName();
        store = FileStore.open(db, file, "rw", cipher, key);
        store.setCheckedWriting(false);
        store.init();
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    }

    public int update() {
        session.getUser().checkAdmin();
        session.commit(true);
        Database db = session.getDatabase();
        User user = db.getUser(authorization);
        user.checkAdmin();
        if (db.findSchema(schemaName) != null) {
            if (ifNotExists) {
                return 0;
            }
            throw DbException.get(ErrorCode.SCHEMA_ALREADY_EXISTS_1, schemaName);
        }
        int id = getObjectId();
        Schema schema = new Schema(db, id, schemaName, user, false);
        db.addDatabaseObject(session, schema);
        return 0;
    }
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    public void setIncrement(Expression increment) {
        this.increment = increment;
    }

    public int update() {
        Database db = session.getDatabase();
        if (table != null) {
            session.getUser().checkRight(table, Right.ALL);
        }
        if (start != null) {
            long startValue = start.optimize(session).getValue(session).getLong();
            sequence.setStartValue(startValue);
        }
        if (increment != null) {
            long incrementValue = increment.optimize(session).getValue(session).getLong();
            if (incrementValue == 0) {
                throw DbException.getInvalidValueException("INCREMENT", 0);
            }
            sequence.setIncrement(incrementValue);
        }
        // need to use the system session, so that the update
        // can be committed immediately - not committing it
        // would keep other transactions from using the sequence
        Session sysSession = db.getSystemSession();
        synchronized (sysSession) {
            db.update(sysSession, sequence);
            sysSession.commit(true);
        }
        return 0;
    }
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        super(session);
    }

    public int update() {
        session.commit(true);
        Database db = session.getDatabase();
        session.getUser().checkAdmin();
        DbObject object = null;
        int errorCode = ErrorCode.GENERAL_ERROR_1;
        if (schemaName == null) {
            schemaName = session.getCurrentSchemaName();
        }
        switch (objectType) {
        case DbObject.CONSTANT:
            object = db.getSchema(schemaName).getConstant(objectName);
            break;
        case DbObject.CONSTRAINT:
            object = db.getSchema(schemaName).getConstraint(objectName);
            break;
        case DbObject.FUNCTION_ALIAS:
            object = db.getSchema(schemaName).findFunction(objectName);
            errorCode = ErrorCode.FUNCTION_ALIAS_NOT_FOUND_1;
            break;
        case DbObject.INDEX:
            object = db.getSchema(schemaName).getIndex(objectName);
            break;
        case DbObject.ROLE:
            schemaName = null;
            object = db.findRole(objectName);
            errorCode = ErrorCode.ROLE_NOT_FOUND_1;
            break;
        case DbObject.SCHEMA:
            schemaName = null;
            object = db.findSchema(objectName);
            errorCode = ErrorCode.SCHEMA_NOT_FOUND_1;
            break;
        case DbObject.SEQUENCE:
            object = db.getSchema(schemaName).getSequence(objectName);
            break;
        case DbObject.TABLE_OR_VIEW:
            object = db.getSchema(schemaName).getTableOrView(session, objectName);
            break;
        case DbObject.TRIGGER:
            object = db.getSchema(schemaName).findTrigger(objectName);
            errorCode = ErrorCode.TRIGGER_NOT_FOUND_1;
            break;
        case DbObject.USER:
            schemaName = null;
            object = db.getUser(objectName);
            break;
        case DbObject.USER_DATATYPE:
            schemaName = null;
            object = db.findUserDataType(objectName);
            errorCode = ErrorCode.USER_DATA_TYPE_ALREADY_EXISTS_1;
            break;
        default:
        }
        if (object == null) {
            throw DbException.get(errorCode, objectName);
        }
        String text = expr.optimize(session).getValue(session).getString();
        if (column) {
            Table table = (Table) object;
            table.getColumn(columnName).setComment(text);
        } else {
            object.setComment(text);
        }
        if (column || objectType == DbObject.TABLE_OR_VIEW || objectType == DbObject.USER
                || objectType == DbObject.INDEX || objectType == DbObject.CONSTRAINT) {
            db.update(session, object);
        } else {
            Comment comment = db.findComment(object);
            if (comment == null) {
                if (text == null) {
                    // reset a non-existing comment - nothing to do
                } else {
                    int id = getObjectId();
                    comment = new Comment(db, id, object);
                    comment.setCommentText(text);
                    db.addDatabaseObject(session, comment);
                }
            } else {
                if (text == null) {
                    db.removeDatabaseObject(session, comment);
                } else {
                    comment.setCommentText(text);
                    db.update(session, comment);
                }
            }
        }
        return 0;
    }
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    }

    public int update() {
        session.getUser().checkAdmin();
        session.commit(true);
        Database db = session.getDatabase();
        if (db.findUser(roleName) != null) {
            throw DbException.get(ErrorCode.USER_ALREADY_EXISTS_1, roleName);
        }
        if (db.findRole(roleName) != null) {
            if (ifNotExists) {
                return 0;
            }
            throw DbException.get(ErrorCode.ROLE_ALREADY_EXISTS_1, roleName);
        }
        int id = getObjectId();
        Role role = new Role(db, id, roleName, false);
        db.addDatabaseObject(session, role);
        return 0;
    }
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        this.force = force;
    }

    public int update() {
        session.commit(true);
        Database db = session.getDatabase();
        TableView view = null;
        Table old = getSchema().findTableOrView(session, viewName);
        if (old != null) {
            if (ifNotExists) {
                return 0;
            }
            if (!orReplace || !Table.VIEW.equals(old.getTableType())) {
                throw DbException.get(ErrorCode.VIEW_ALREADY_EXISTS_1, viewName);
            }
            view = (TableView) old;
        }
        int id = getObjectId();
        String querySQL;
        if (select == null) {
            querySQL = selectSQL;
        } else {
            ArrayList<Parameter> params = select.getParameters();
            if (params != null && params.size() > 0) {
                throw DbException.get(ErrorCode.FEATURE_NOT_SUPPORTED_1, "parameters in views");
            }
            querySQL = select.getPlanSQL();
        }
        Session sysSession = db.getSystemSession();
        try {
            if (view == null) {
                Schema schema = session.getDatabase().getSchema(session.getCurrentSchemaName());
                sysSession.setCurrentSchema(schema);
                view = new TableView(getSchema(), id, viewName, querySQL, null, columnNames, sysSession, false);
            } else {
                view.replace(querySQL, columnNames, sysSession, false, force);
            }
        } finally {
            sysSession.setCurrentSchema(db.getSchema(Constants.SCHEMA_MAIN));
        }
        if (comment != null) {
            view.setComment(comment);
        }
        if (old == null) {
            db.addSchemaObject(session, view);
        } else {
            db.update(session, view);
        }
        return 0;
    }
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    }

    public int update() {
        session.getUser().checkAdmin();
        session.commit(true);
        Database db = session.getDatabase();
        User user = db.findUser(userName);
        if (user == null) {
            if (!ifExists) {
                throw DbException.get(ErrorCode.USER_NOT_FOUND_1, userName);
            }
        } else {
            if (user == session.getUser()) {
                int adminUserCount = 0;
                for (User u : db.getAllUsers()) {
                    if (u.isAdmin()) {
                        adminUserCount++;
                    }
                }
                if (adminUserCount == 1) {
                    throw DbException.get(ErrorCode.CANNOT_DROP_CURRENT_USER);
                }
            }
            user.checkOwnsNoSchemas();
            db.removeDatabaseObject(session, user);
        }
        return 0;
    }
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        }
        roleNames.add(roleName);
    }

    public void setGranteeName(String granteeName) {
        Database db = session.getDatabase();
        grantee = db.findUser(granteeName);
        if (grantee == null) {
            grantee = db.findRole(granteeName);
            if (grantee == null) {
                throw DbException.get(ErrorCode.USER_OR_ROLE_NOT_FOUND_1, granteeName);
            }
        }
    }
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    }

    public int update() {
        session.getUser().checkAdmin();
        session.commit(true);
        Database db = session.getDatabase();
        if (roleNames != null) {
            for (String name : roleNames) {
                Role grantedRole = db.findRole(name);
                if (grantedRole == null) {
                    throw DbException.get(ErrorCode.ROLE_NOT_FOUND_1, name);
                }
                if (operationType == CommandInterface.GRANT) {
                    grantRole(grantedRole);
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