Examples of org.lealone.constant.DbSettings

org.lealone.constant.DbSettings
This class contains various database-level settings. To override the documented default value for a database, append the setting in the database URL: "jdbc:lealone:test;ALIAS_COLUMN_NAME=TRUE" when opening the first connection to the database. The settings can not be changed once the database is open.
Some settings are a last resort and temporary solution to work around a problem in the application or database engine. Also, there are system properties to enable features that are not yet fully tested or that are not backward compatible.

            }
        }


        ci.removeProperty("SERVER_TYPE", false);
        session.setAllowLiterals(true);
        DbSettings defaultSettings = DbSettings.getInstance();
        for (String setting : ci.getKeys()) {
            if (defaultSettings.containsKey(setting)) {
                // database setting are only used when opening the database
                continue;
            }
            String value = ci.getProperty(setting);
            try {

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    }


    public void readProperties(Properties info) {
        Object[] list = new Object[info.size()];
        info.keySet().toArray(list);
        DbSettings s = null;
        for (Object k : list) {
            String key = StringUtils.toUpperEnglish(k.toString());
            if (prop.containsKey(key)) {
                throw DbException.get(ErrorCode.DUPLICATE_PROPERTY_1, key);
            }
            Object value = info.get(k);
            if (isKnownSetting(key)) {
                prop.put(key, value);
            } else {
                if (s == null) {
                    s = getDbSettings();
                }
                if (s.containsKey(key)) {
                    prop.put(key, value);
                }
            }
        }
    }

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            }
        }
    }


    private void readSettingsFromURL() {
        DbSettings dbSettings = DbSettings.getInstance();
        //Lealone的JDBC URL语法:
        //jdbc:lealone:tcp://[host:port],[host:port].../[database][;propertyName1][=propertyValue1][;propertyName2][=propertyValue2]
        //数据库名与参数之间用';'号分隔，不同参数之间也用';'号分隔
        int idx = url.indexOf(';');
        char splitChar = ';';
        if (idx < 0) {
            //看看是否是MySQL的JDBC URL语法:
            //jdbc:mysql://[host:port],[host:port].../[database][?propertyName1][=propertyValue1][&propertyName2][=propertyValue2]
            //数据库名与参数之间用'?'号分隔，不同参数之间用'&'分隔
            idx = url.indexOf('?');
            if (idx >= 0)
                splitChar = '&';
        }
        if (idx >= 0) {
            String settings = url.substring(idx + 1);
            url = url.substring(0, idx); //去掉后面的参数
            String[] list = StringUtils.arraySplit(settings, splitChar, false);
            for (String setting : list) {
                if (setting.length() == 0) {
                    continue;
                }
                int equal = setting.indexOf('=');
                if (equal < 0) {
                    throw getFormatException();
                }
                String value = setting.substring(equal + 1);
                String key = setting.substring(0, equal);
                key = StringUtils.toUpperEnglish(key);
                if (!isKnownSetting(key) && !dbSettings.containsKey(key)) {
                    throw DbException.get(ErrorCode.UNSUPPORTED_SETTING_1, key);
                }
                String old = prop.getProperty(key);
                if (old != null && !old.equals(value)) {
                    throw DbException.get(ErrorCode.DUPLICATE_PROPERTY_1, key);

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        remote = true;
        dbName = serverKey;
    }


    public DbSettings getDbSettings() {
        DbSettings defaultSettings = DbSettings.getInstance();
        HashMap<String, String> s = null;
        for (Object k : prop.keySet()) {
            String key = k.toString();
            if (!isKnownSetting(key) && defaultSettings.containsKey(key)) {
                if (s == null) {
                    s = New.hashMap();
                }
                s.put(key, prop.getProperty(key));
            }

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Related Classes of org.lealone.constant.DbSettings

org.lealone.engine.ConnectionInfo

org.lealone.engine.DatabaseEngineBase

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