public static Expression Build(QueryLinguist linguist, QueryPolicy policy, Expression expression, Expression provider)
{
var executor = Expression.Parameter(typeof(QueryExecutor), "executor");
var builder = new ExecutionBuilder(linguist, policy, executor);
builder.variables.Add(executor);
builder.initializers.Add(Expression.Call(Expression.Convert(provider, typeof(ICreateExecutor)), nameof(ICreateExecutor.CreateExecutor), null, null));
var result = builder.Build(expression);
return(result);
}
public QueryTranslator(QueryLanguage language, QueryMapping mapping, QueryPolicy policy)
{
this.linguist = language.CreateLinguist(this);
this.mapper = mapping.CreateMapper(this);
this.police = policy.CreatePolice(this);
}
private ExecutionBuilder(QueryLinguist linguist, QueryPolicy policy, Expression executor)
{
this.linguist = linguist;
this.policy = policy;
this.executor = executor;
}
public static Expression Rewrite(QueryPolicy policy, QueryLanguage language, Expression expression)
{
return(new ClientJoinedProjectionRewriter(policy, language).Visit(expression));
}
private ClientJoinedProjectionRewriter(QueryPolicy policy, QueryLanguage language)
{
this.policy = policy;
this.language = language;
}
public QueryPolice(QueryPolicy policy, QueryTranslator translator)
{
this.policy = policy;
this.translator = translator;
}
private RelationshipIncluder(QueryMapper mapper)
{
this.mapper = mapper;
this.policy = mapper.Translator.Police.Policy;
}