MapFieldHandler.java 文件源码

@Override
public void store(final PortletPreferences preferences, final String key, final Map<K, V> values)
        throws ReadOnlyException {
    int index = 0;
    if (values != null) {
        for (final Map.Entry<K, V> entry : values.entrySet()) {
            this.keyHandler.store(preferences, key + '.' + index + 'k', entry.getKey());
            this.valueHandler.store(preferences, key + '.' + index + 'v', entry.getValue());
            index++;
        }
    }
    preferences.setValue(key + ".length", String.valueOf(index));
}