/**
* Prepare for MyselfExists (correlated sub-query).
*
* @param subCBLambda The implementation of sub-query. (NotNull)
*/
public void myselfExists(SubQuery<TweetCB> subCBLambda) {
assertObjectNotNull("subCBLambda", subCBLambda);
TweetCB cb = new TweetCB();
cb.xsetupForMyselfExists(this);
lockCall(() -> subCBLambda.query(cb));
String pp = keepMyselfExists(cb.query());
registerMyselfExists(cb.query(), pp);
}
