Examples with ConstraintActionType org.h2.constraint.ConstraintActionType used on opensource projects

Example 1 with ConstraintActionType

use of org.h2.constraint.ConstraintActionType in project h2database by h2database.

the class ConstraintReferential method prepare.

private Prepared prepare(Session session, String sql, ConstraintActionType action) {
    Prepared command = session.prepare(sql);
    if (action != ConstraintActionType.CASCADE) {
        ArrayList<Parameter> params = command.getParameters();
        for (int i = 0, len = columns.length; i < len; i++) {
            Column column = columns[i].column;
            Parameter param = params.get(i);
            Value value;
            if (action == ConstraintActionType.SET_NULL) {
                value = ValueNull.INSTANCE;
            } else {
                Expression expr = column.getDefaultExpression();
                if (expr == null) {
                    throw DbException.get(ErrorCode.NO_DEFAULT_SET_1, column.getName());
                }
                value = expr.getValue(session);
            }
            param.setValue(value);
        }
    }
    return command;
}

Example 2 with ConstraintActionType

use of org.h2.constraint.ConstraintActionType in project h2database by h2database.

the class Parser method parseAction.

private ConstraintActionType parseAction() {
    ConstraintActionType result = parseCascadeOrRestrict();
    if (result != null) {
        return result;
    }
    if (readIf("NO")) {
        read("ACTION");
        return ConstraintActionType.RESTRICT;
    }
    read("SET");
    if (readIf("NULL")) {
        return ConstraintActionType.SET_NULL;
    }
    read("DEFAULT");
    return ConstraintActionType.SET_DEFAULT;
}

Example 3 with ConstraintActionType

use of org.h2.constraint.ConstraintActionType in project h2database by h2database.

the class Parser method parseDrop.

private Prepared parseDrop() {
    if (readIf("TABLE")) {
        boolean ifExists = readIfExists(false);
        String tableName = readIdentifierWithSchema();
        DropTable command = new DropTable(session, getSchema());
        command.setTableName(tableName);
        while (readIf(",")) {
            tableName = readIdentifierWithSchema();
            DropTable next = new DropTable(session, getSchema());
            next.setTableName(tableName);
            command.addNextDropTable(next);
        }
        ifExists = readIfExists(ifExists);
        command.setIfExists(ifExists);
        if (readIf("CASCADE")) {
            command.setDropAction(ConstraintActionType.CASCADE);
            readIf("CONSTRAINTS");
        } else if (readIf("RESTRICT")) {
            command.setDropAction(ConstraintActionType.RESTRICT);
        } else if (readIf("IGNORE")) {
            command.setDropAction(ConstraintActionType.SET_DEFAULT);
        }
        return command;
    } else if (readIf("INDEX")) {
        boolean ifExists = readIfExists(false);
        String indexName = readIdentifierWithSchema();
        DropIndex command = new DropIndex(session, getSchema());
        command.setIndexName(indexName);
        ifExists = readIfExists(ifExists);
        command.setIfExists(ifExists);
        // Support for MySQL: DROP INDEX index_name ON tbl_name
        if (readIf("ON")) {
            readIdentifierWithSchema();
        }
        return command;
    } else if (readIf("USER")) {
        boolean ifExists = readIfExists(false);
        DropUser command = new DropUser(session);
        command.setUserName(readUniqueIdentifier());
        ifExists = readIfExists(ifExists);
        readIf("CASCADE");
        command.setIfExists(ifExists);
        return command;
    } else if (readIf("SEQUENCE")) {
        boolean ifExists = readIfExists(false);
        String sequenceName = readIdentifierWithSchema();
        DropSequence command = new DropSequence(session, getSchema());
        command.setSequenceName(sequenceName);
        ifExists = readIfExists(ifExists);
        command.setIfExists(ifExists);
        return command;
    } else if (readIf("CONSTANT")) {
        boolean ifExists = readIfExists(false);
        String constantName = readIdentifierWithSchema();
        DropConstant command = new DropConstant(session, getSchema());
        command.setConstantName(constantName);
        ifExists = readIfExists(ifExists);
        command.setIfExists(ifExists);
        return command;
    } else if (readIf("TRIGGER")) {
        boolean ifExists = readIfExists(false);
        String triggerName = readIdentifierWithSchema();
        DropTrigger command = new DropTrigger(session, getSchema());
        command.setTriggerName(triggerName);
        ifExists = readIfExists(ifExists);
        command.setIfExists(ifExists);
        return command;
    } else if (readIf("VIEW")) {
        boolean ifExists = readIfExists(false);
        String viewName = readIdentifierWithSchema();
        DropView command = new DropView(session, getSchema());
        command.setViewName(viewName);
        ifExists = readIfExists(ifExists);
        command.setIfExists(ifExists);
        ConstraintActionType dropAction = parseCascadeOrRestrict();
        if (dropAction != null) {
            command.setDropAction(dropAction);
        }
        return command;
    } else if (readIf("ROLE")) {
        boolean ifExists = readIfExists(false);
        DropRole command = new DropRole(session);
        command.setRoleName(readUniqueIdentifier());
        ifExists = readIfExists(ifExists);
        command.setIfExists(ifExists);
        return command;
    } else if (readIf("ALIAS")) {
        boolean ifExists = readIfExists(false);
        String aliasName = readIdentifierWithSchema();
        DropFunctionAlias command = new DropFunctionAlias(session, getSchema());
        command.setAliasName(aliasName);
        ifExists = readIfExists(ifExists);
        command.setIfExists(ifExists);
        return command;
    } else if (readIf("SCHEMA")) {
        boolean ifExists = readIfExists(false);
        DropSchema command = new DropSchema(session);
        command.setSchemaName(readUniqueIdentifier());
        ifExists = readIfExists(ifExists);
        command.setIfExists(ifExists);
        if (readIf("CASCADE")) {
            command.setDropAction(ConstraintActionType.CASCADE);
        } else if (readIf("RESTRICT")) {
            command.setDropAction(ConstraintActionType.RESTRICT);
        }
        return command;
    } else if (readIf("ALL")) {
        read("OBJECTS");
        DropDatabase command = new DropDatabase(session);
        command.setDropAllObjects(true);
        if (readIf("DELETE")) {
            read("FILES");
            command.setDeleteFiles(true);
        }
        return command;
    } else if (readIf("DOMAIN")) {
        return parseDropUserDataType();
    } else if (readIf("TYPE")) {
        return parseDropUserDataType();
    } else if (readIf("DATATYPE")) {
        return parseDropUserDataType();
    } else if (readIf("AGGREGATE")) {
        return parseDropAggregate();
    } else if (readIf("SYNONYM")) {
        boolean ifExists = readIfExists(false);
        String synonymName = readIdentifierWithSchema();
        DropSynonym command = new DropSynonym(session, getSchema());
        command.setSynonymName(synonymName);
        ifExists = readIfExists(ifExists);
        command.setIfExists(ifExists);
        return command;
    }
    throw getSyntaxError();
}