PreferencesValidatorImpl.java 文件源码

private void checkValidatorCount() throws ValidatorException {
    if (LOG.isDebugEnabled()) {
        LOG.debug("Checking validator count...");
    }
    Integer instanceCreated = (Integer) INSTANCE_COUNTER.get(
            getClass().getName());
    if (LOG.isDebugEnabled()) {
        LOG.debug("Method validate() invoked " + validateInvoked + " times.");
        LOG.debug("Validator created " + instanceCreated.intValue() + " times.");
    }
    if (instanceCreated.intValue() != 1) {
        throw new ValidatorException(instanceCreated.toString()
                + " validator instances were created, "
                + "expected 1 validator instance per portlet definition.",
                null);
    }
}