code: @Nonnull
    @OverrideOnDemand
    public IPSQueryBinding getQueryBinding (@Nonnull final PSSchema aSchema) throws SchematronException
    {
      return PSQueryBindingRegistry.getQueryBindingOfNameOrThrow (aSchema.getQueryBinding ());
    }
docs: Determine the query binding for the read schema.
  
  @param aSchema
  The read schema. Never <code>null</code>.
  @return The query binding to use. Never <code>null</code>.
  @throws SchematronException
  In case the determination fails.