enums

Compare Java enum values

Is there a way to check if an enum value is 'greater/equal' to another value? I want to check if an error level is 'error or above'. ...

doxygen: how do I document \enum values out-of-line?

To be precise: I know how to dox enums at the point of declaration, I want to dox them out-of-line instead. I want to keep the header file free of doxygen comments; they're all in the .cpp file. This is not a problem for functions, classes, typedefs and so on. I can also document the enum itself like this: /*! \enum MyClass::MyEnum ...

How to map enum in JNA

Hi, I have the following enum how do i map in jna ?? This enum is further referenced in structure. typedef enum { eFtUsbDeviceNotShared, eFtUsbDeviceSharedActive, eFtUsbDeviceSharedNotActive, eFtUsbDeviceSharedNotPlugged, eFtUsbDeviceSharedProblem } eFtUsbDeviceStatus; Abdul Khaliq ...

How is values() implemented for Java 6 enums?

In Java, you can create an enum as follows: public enum Letter { A, B, C, D, E, F, G; static { for(Letter letter : values()) { // do something with letter } } } This question concerns the "values()" method. Specifically, how is it implemented? Usually, I could jump to the source for Java classes us...

Question on Initial Value of an Enum (C#)

I have a class with a property which is an enum The enum is /// <summary> /// All available delivery actions /// </summary> public enum EnumDeliveryAction { /// <summary> /// Tasks with email delivery action will be emailed /// </summary> Email, /// <summary> /// Tasks with SharePoint delivery action /// ...

convert enum to list in c#

Is there a way to convert an enum to a list that contains all the enum's options? ...

Syncing referential integrity tables and enums

I ponder this question from time to time, so I thought I'd ask you guys about it. Let's say I have a database table that looks like this: Table: Visibility Id Value -- ----- 0 Visible 1 Invisible 2 Collapsed This is just a table for ensuring referential integrity. It is basically an enum stored in the database for the pu...

Check if enum exists in Java

Is there anyway to check if an enum exists by comparing it to a given string? I can't seem to find any such function. I could just try to use the valueOf method and catch an exception but Iv been taught that catching runtime exceptions is not good practice. Anybody have any ideas? ...

Why are these Java enums changing values?

I'm having some trouble with making list of objects based on a condition on an enum. It seems that after I have completed the list, every item in the list is equivalent to the last item. It's the classic case of different references pointing to the same object, but I don't know how to avoid it: I've pared things down as much as I can ...

How to get the data value of an enum in a generic method?

Thanks to this question I managed to work out how to constrain my generic method to accept only enums. Now I'm trying to create a generic method so that I can bind a drop-down to any enum I choose, displaying the description in the drop-down, with the value equal to the numeric value of the enum value. public static object EnumToDataSo...

Using Java Generics with Enums

Update: Thanks for everyone who helped out - the answer to this one lay in what I wasn't noticing in my more complex code and what I didn't know about the Java5 covariant return types. Original Post: I've been playing around with something this morning. While I know that I could tackle this whole problem differently, I'm finding mysel...

enum with value 0x0001 ??

I have an enum declaration like this: public enum Filter { a = 0x0001; b = 0x0002; } What does that mean? They are using this to filter an array. ...

Spring - How do you set Enum keys in a Map with annotations

Hi all, I've an Enum class public enum MyEnum{ ABC; } than my 'Mick' class has this property private Map<MyEnum, OtherObj> myMap; I've this spring xml configuration. <util:map id="myMap"> <entry key="ABC" value-ref="myObj" /> </util:map> <bean id="mick" class="com.x.Mick"> <property name="myMap" ref="myMap" /> </bean...

Binding a datasource with some Enum values

How can I bind a DataSource with some selected enum values? My Enum: public enum Filters : byte { Filter1 = 1, Filter2 = 2, Filter3 = 4, Filter4 = 8, Filter5 = 16 } Selected values: public Filters SelectedFilters = Filters.Filter1 | Filters.Filter4; How can I bind the SelectedFilters variable as a datasource? ...

String to enum conversion in C#

I have a combo box where I am displaying some entries like: Equals Not Equals Less Than Greater Than Notice that these strings contain spaces. I have a enum defined which matches to these entries like: enum Operation{Equals, Not_Equals, Less_Than, Greater_Than}; Since space is not allowed, I have used _ character. Now, is there a...

Cocoa: Dictionary with enum keys?

I need to create a dictionary/hashmap where the Keys are enums Values are some subclass of NSObject NSDictionary won't work here (enums don't conform to NSCopying). I could perhaps use a CFDictionaryRef here, but I'd like to know if is there any other way to achieve this. ...

C# non-boxing conversion of generic enum to int?

Given a generic parameter TEnum which always will be an enum type, is there any way to cast from TEnum to int without boxing/unboxing? See this example code. This will box/unbox the value unnecessarily. private int Foo<TEnum>(TEnum value) where TEnum : struct // C# does not allow enum constraint { return (int) (ValueType) val...

C program - checking whether two enums are in sync at compile time.

The problem that I have is that I have two enums in two different files which should have the same sets of constants (two different processes are generated by the two files along with other files). I want the enums to be in sync i.e. when some one adds a new value to enum x and forgets to update the other enum, I want to throw a compilat...

Making business code readable, database enums

Lets say i got a enum table like this: id name desc 0 Normal Normal shipping 1 Fragile Fragile, handle with care and i got some business rule on an order double ShippingPrice(Product p) { if (p.ShippingType == 1) // Fragile return GetFragileShippingPrice(p); else return GetNormalShippingPrice(p); } Maybe not ...

is my Enumeration correct ?

All over our project, we have this kind of enums. They works just fine, but we are not sure about them. Specially with the getDocumentType(String) method. Is there a way to avoid the iteration over all the Enums field ? public enum DocumentType { UNKNOWN("Unknown"), ANY("Any"), ASSET(Asset.class.getSimpleName()), ME...