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#476 - ENH: Enable ServiceConfig to use alternate ClassLoader - was ServiceConfig add setClassloader api --- part 1 : protected methods

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This commit is contained in:
Robin Bygrave
2015-12-07 17:37:59 +13:00
parent 7d85398139
commit 8bc283fef4
1 changed files with 27 additions and 3 deletions
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src/main/java/com/avaje/ebean/config/ServerConfig.java
+27 -3
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@@ -7,7 +7,14 @@ import com.avaje.ebean.cache.ServerCacheFactory;
import com.avaje.ebean.cache.ServerCacheManager;
import com.avaje.ebean.config.dbplatform.DatabasePlatform;
import com.avaje.ebean.config.dbplatform.DbEncrypt;
import com.avaje.ebean.event.*;
import com.avaje.ebean.event.BeanFindController;
import com.avaje.ebean.event.BeanPersistController;
import com.avaje.ebean.event.BeanPersistListener;
import com.avaje.ebean.event.BeanPostLoad;
import com.avaje.ebean.event.BeanQueryAdapter;
import com.avaje.ebean.event.BulkTableEventListener;
import com.avaje.ebean.event.ServerConfigStartup;
import com.avaje.ebean.event.TransactionEventListener;
import com.avaje.ebean.event.changelog.ChangeLogListener;
import com.avaje.ebean.event.changelog.ChangeLogPrepare;
import com.avaje.ebean.event.changelog.ChangeLogRegister;
@@ -2062,13 +2069,30 @@ public class ServerConfig {
return properties;
}
/**
* Return the instance to use (can be null) for the given plugin.
*
* @param properties the properties
* @param pluginType the type of plugin
* @param key properties key
* @param instance existing instance
*/
@SuppressWarnings("unchecked")
private <T> T createInstance(PropertiesWrapper p, Class<T> pluginType, String key, T instance) {
protected <T> T createInstance(PropertiesWrapper properties, Class<T> pluginType, String key, T instance) {
if (instance != null) {
return instance;
}
String classname = p.get(key, null);
String classname = properties.get(key, null);
return createInstance(pluginType, classname);
}
/**
* Return the instance to use (can be null) for the given plugin.
* @param pluginType the type of plugin
* @param classname the implementation class as per properties
*/
protected <T> T createInstance(Class<T> pluginType, String classname) {
return classname == null ? null : (T) ClassUtil.newInstance(classname);
}