I'm using stored numeric values in calculations and matching situations and javascript doubles are a big "NO-NO" when doing these kind of operations.
However I can't find a solution on how to use java BigDecimal in SSJS in Xpages.
Since one should construct a BigDecimal using a string I have tried different approaches i SSJS. Whatever test the result is the same, the call is ambiguous:
Ambiguity when calling new java.math.BigDecimal(long) and new
java.math.BigDecimal(int)
How do I use a BigDecimal in my SSJS when values are stored in documents as Numbers?
How do I use BigDecimal with a string argument when values are stored in documents as Numbers?
edit/amend:
After accepting Svens answer I got a bit further and to my second question.
The value retrieved from the document is 451368 but it will be stored in variable as 451367.99999999994
How do I recover from that when the user should match against original value?
Use Java-Objects instead:
var value = new java.lang.Integer(1);
new java.math.BigDecimal(value);
Related
is it possible for one field in protobuf to support/accept a string or an array of string.
This is my message:
message MessageA {
string fieldId =1;
string method = 2;
google.protobuf.Any value =3;
}
The reason for it being dynamic is because an array of string or a simple string can be the input. There are separate methods on what will happen if the payload is string[] or string.
Right now, I'm using any but I'm not sure what to do in the any file. I've read that oneof does not support array data types thats why I'm trying to make it work with any.
Here is the error message when I try to put a repeated inside a oneof:
No, basically. The main way of doing this would be to have two inner-types - one with a single-valued member, one with a repeated member, and have a oneof that covers the two inner-types. Or perhaps simpler: just have a repeated and separately have an enum, boolean, or other indicator to choose between the two possible meanings (so you can tell between "an array, that happened to have exactly one item" vs "the single value").
For anyone that might have the same problem as me, you can use google.protobuf.Value. There would be an additional object but it can be transformed using UsePipe so it shouldn't be a problem.
Here is the documentation: https://developers.google.com/protocol-buffers/docs/reference/google.protobuf#google.protobuf.Value
I have an object stored in the ViewScope: ObjectName (valueA:one, valueB:two)
I stored the values using Java:
ObjectObject location = new ObjectObject();
location.put("valueA", FBSUtility.wrap("one"));
location.put("valueB", FBSUtility.wrap("two"));
Utils.setViewScope("ObjectName", location);
How would I go about retrieving these values from the ViewScope? I've tried doing something like the following:
ObjectObject location;
location = (ObjectObject) ExtLibUtil.getViewScope().get("ObjectName");
but I'm not sure what methods to use to get the values or if this is even the correct path. Thanks in advance for any help.
It's a bit unusual to go out of your way to use the FBS classes, but that path is reasonable enough to accomplish what you want. As long as the latter code is executed after the format, that should retrieve the same object and properly cast it to ObjectObject. After that, you could use location.get("valueA"), etc. to get the values by name, and then whatever methods of FBSValue are appropriate (I'd guess stringValue()).
Incidentally, unless you have a specific need to use these internal classes (like if you're doing something fancy with SSJS functions), it may make sense to use just a normal HashMap<String, Object> instead. SSJS and EL can work with those quite well.
Can anyone tell me how to correctly get ORMLite to store enums as integers? I know that this was not supported in 2012 but i found code for some unit tests that suggest it should work now but it doesn't. When we try the column gets created as a varchar(max) in ms sql. We currently use a wrapping property that is ignored to convert the enum value to int but then you can't use it for queries etc so it is less than ideal.
Add a [Flags] attribute to enums you want ServiceStack to treat as integers.
From v4.0.54 you can also use the [EnumAsInt] attribute which will save the enum as an int in OrmLite but still serialize it as a string.
After spending a year working with the Microsoft.Xrm.Sdk namespace, I just discovered yesterday the Entity.FormattedValues property contains the text value for Entity specific (ie Local) Option Set texts.
The reason I didn't discover it before, is there is no early bound method of getting the value. i.e. entity.new_myOptionSet is of type OptionSetValue which only contains the int value. You have to call entity.FormattedValues["new_myoptionset"] to get the string text value of the OptionSetValue.
Therefore, I'd like to get the crmsrvcutil to auto-generate a text property for local option sets. i.e. Along with Entity.new_myOptionSet being generated as it currently does, Entity.new_myOptionSetText would be generated as well.
I've looked into the Microsoft.Crm.Services.Utility.ICodeGenerationService, but that looks like it is mostly for specifying what CodeGenerationType something should be...
Is there a way supported way using CrmServiceUtil to add these properties, or am I better off writing a custom app that I can run that can generate these properties as a partial class to the auto-generated ones?
Edit - Example of the code that I would like to be generated
Currently, whenever I need to access the text value of a OptionSetValue, I use this code:
var textValue = OptionSetCache.GetText(service, entity, e => e.New_MyOptionSet);
The option set cache will use the entity.LogicalName, and the property expression to determine the name of the option set that I'm asking for. It will then query the SDK using the RetrieveAttriubteRequest, to get a list of the option set int and text values, which it then caches so it doesn't have to hit CRM again. It then looks up the int value of the New_MyOptionSet of the entity and cross references it with the cached list, to get the text value of the OptionSet.
Instead of doing all of that, I can just do this (assuming that the entity has been retrieved from the server, and not just populated client side):
var textValue = entity.FormattedValues["new_myoptionset"];
but the "new_myoptionset" is no longer early bound. I would like the early bound entity classes that gets generated to also generate an extra "Text" property for OptionSetValue properties that calls the above line, so my entity would have this added to it:
public string New_MyOptionSetText {
return this.GetFormattedAttributeValue("new_myoptionset"); // this is a protected method on the Entity class itself...
}
Could you utilize the CrmServiceUtil extension that will generate enums for your OptionSets and then add your new_myOptionSetText property to a partial class that compares the int value to the enums and returns the enum string
Again, I think specifically for this case, getting CrmSvcUtil.exe to generate the code you want is a great idea, but more generally, you can access the property name via reflection using an approach similar to the accepted answer # workarounds for nameof() operator in C#: typesafe databinding.
var textValue = entity.FormattedValues["new_myoptionset"];
// becomes
var textValue = entity.FormattedValues
[
// renamed the class from Nameof to NameOf
NameOf(Xrm.MyEntity).Property(x => x.new_MyOptionSet).ToLower()
];
The latest version of the CRM Early Bound Generator includes a Fields struct that that contains the field names. This allows accessing the FormattedValues to be as simple as this:
var textValue = entity.FormattedValues[MyEntity.Fields.new_MyOptionSet];
You could create a new property via an interface for the CrmSvcUtil, but that's a lot of work for a fairly simple call, and I don't think it justifies creating additional properties.
I'm working on a C++ Metro style app and have to pass a string by reference (somehow). At first, I passed the String^ which doesn't work because strings are immutable how I have found out.
What would be a proper way to pass a string by reference?
Edit: OK, it seems that it's not that easy since the answers and comments suggest to use return values. But as far as I think this is not applicable in my situation: In this Metro app I have two pages and a string should be "shared" across those two pages.
So in the main page I do this in a click event:
this->Frame->Navigate(newPage, this->TestString);
In the OnNavigatedTo event of the second page I convert the second parameter to a String^ and change it. Then I use this->Frame->GoBack() to navigate back to the first page. There I'd like to have access to the changed string. Unfortunately, GoBack() doesn't allow to pass any parameters as far as I know.
You can use a tracking reference:
void ModifyTheParameter(String^% value) {
value = gcnew String("Blah");
}
That would modify the original variable you passed in as parameter (see MSDN for more info and examples). It would then be used just as any other method taking a String^ parameter.
But if possible, avoid using tracking references as parameters. I'd recommend just returning a String^ and assigning that to the original variable.
Yet another possibility: You could just create some kind of View-agnostic DataModel that contains your String (and possibly other data that you work with). You could then pass that DataModel to your method. Since the DataModel variable isn't changed (just a property of it), you wouldn't need to pass a reference to it.
See below an example of a function f which takes as a parameter a reference to a std::string.
std::string someString;
void f(std::string& s);
f(someString);