import com.googlecode.objectify.annotation.OnSave; //导入依赖的package包/类
@OnSave
private void setAuditableFieldsOnSave() {
    if (!skipSettingAuditableFields) {
        updated = DateTime.now();
        updatedBy = getCurrentUserRef();

        if (created == null) {
            created = updated;
            createdBy = updatedBy;
        }
    }
}
 

import com.googlecode.objectify.annotation.OnSave; //导入依赖的package包/类
/** As a safety mechanism, fail if someone tries to save this class directly. */
@OnSave
void disallowUnshardedSaves() {
  if (!isShard) {
    throw new UnshardedSaveException();
  }
}
 

import com.googlecode.objectify.annotation.OnSave; //导入依赖的package包/类
/**
 * On save update the date added
 */
@OnSave
void onSave() {
	if(this.dateAdded == null) {
		this.dateAdded = new Date();
	}
}
 

import com.googlecode.objectify.annotation.OnSave; //导入依赖的package包/类
@OnSave
public void save() {
  onSaveCalled = true;
}
 

import com.googlecode.objectify.annotation.OnSave; //导入依赖的package包/类
@OnSave
public void updateLastUpdateTimestamp() {
    this.setLastUpdate(new Date());
}
 

import com.googlecode.objectify.annotation.OnSave; //导入依赖的package包/类
@OnSave
void onPersist() {
  // TODO: Move this method to a superclass that implements a persistence layer
  ++this.version;
}
 

import com.googlecode.objectify.annotation.OnSave; //导入依赖的package包/类
/**
 * Invalidates the cache entry.
 *
 * <p>This is called automatically when the registry is saved. One should also call it when a
 * registry is deleted.
 */
@OnSave
public void invalidateInCache() {
  CACHE.invalidate(tldStr);
}