internal void BuildDryadLinqAssembly(DryadLinqQueryGen queryGen)
{
lock (s_codeGenLock)
{
// this method only gets called from DryadLinqQueryGen.GenerateDryadProgram() before job submission.
// Since we don't load the generated vertex DLL after that, the check for
// "should re-gen?" below is based on m_generatedVertexDllPath being set
if (this.m_generatedVertexDllPath == null)
{
queryGen.CodeGenVisit();
this.BuildAssembly(false);
}
}
}
/// <summary>
/// Explain a query plan in terms of elementary operations.
/// </summary>
/// <param name="gen">Query generator.</param>
/// <returns>A string explaining the plan.</returns>
internal string Explain(DryadLinqQueryGen gen)
{
StringBuilder plan = new StringBuilder();
gen.CodeGenVisit();
this.CodeShowVisit(plan, gen.QueryPlan());
return plan.ToString();
}