*/
protected boolean canExecute(AbstractTransaction ts0, List<CountedStatement> queries0,
AbstractTransaction ts1, List<CountedStatement> queries1) {
ParameterSet params0 = ts0.getProcedureParameters();
ParameterSet params1 = ts1.getProcedureParameters();
CountedStatement stmt0, stmt1;
StatementCache cache0, cache1;
Map<StmtParameter, SortedSet<ParameterMapping>> mappings0, mappings1;
if (params0 == null) {
LOG.error(String.format("The ParameterSet for %s is null.", ts0));