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The runtime library of DBFlute
/*
* Copyright 2014-2021 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
* either express or implied. See the License for the specific language
* governing permissions and limitations under the License.
*/
package org.dbflute.cbean.garnish;
import org.dbflute.cbean.ConditionBean;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* The determiner to except check of specify-column required.
* Used by DBFluteConfig so don't rename and move easily.
* @author jflute
* @since 1.1.7 (2018/03/14 Wednesday)
*/
@FunctionalInterface
public interface SpecifyColumnRequiredExceptDeterminer {
/**
* @param cb The currently executed condition-bean. (NotNull)
* @return The determination, true or false.
*/
boolean isExcept(ConditionBean cb);
/**
* for easy settings to multiple databases (you can set default determiner)
*
* SpecifyColumnRequiredExceptDeterminer.Bowgun.unlock();
* SpecifyColumnRequiredExceptDeterminer.Bowgun.setDefaultDeterminer(...); // and locked
*
* @author jflute
*/
class Bowgun {
private static final Logger _log = LoggerFactory.getLogger(SpecifyColumnRequiredExceptDeterminer.Bowgun.class);
protected static final SpecifyColumnRequiredExceptDeterminer _emptyDeterminer = cb -> false;
protected static SpecifyColumnRequiredExceptDeterminer _defaultDeterminer;
protected static boolean _locked = true;
public static SpecifyColumnRequiredExceptDeterminer getDefaultDeterminer() { // not null
return _defaultDeterminer != null ? _defaultDeterminer : _emptyDeterminer;
}
public static void setDefaultDeterminer(SpecifyColumnRequiredExceptDeterminer defaultDeterminer) {
assertUnlocked();
if (_log.isInfoEnabled()) {
_log.info("...Setting default of specifyColumnRequiredExceptDeterminer: " + defaultDeterminer);
}
_defaultDeterminer = defaultDeterminer;
lock();
}
public static boolean isLocked() {
return _locked;
}
public static void lock() {
if (_locked) {
return;
}
if (_log.isInfoEnabled()) {
_log.info("...Locking the determiner bowgun for specifyColumnRequiredExceptDeterminer!");
}
_locked = true;
}
public static void unlock() {
if (!_locked) {
return;
}
if (_log.isInfoEnabled()) {
_log.info("...Unlocking the determiner bowgun for specifyColumnRequiredExceptDeterminer!");
}
_locked = false;
}
protected static void assertUnlocked() {
if (!isLocked()) {
return;
}
throw new IllegalStateException("The determiner bowgun for specifyColumnRequiredExceptDeterminer is locked.");
}
}
}
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