3. Fop Expression Builder

FopExpressionBuilder 🙏

The class helps us to generate IFopRequest from to string.

So as you guess we need a query logic for FopExpressionBuilder and they both must speak the same language.

FopExpressionBuilder has one public method for your usage and it's Build method. The methods accept 4 parameters.

They are string filter, string order, int pageNumber, int pageSize

IFopRequest Build(string filter, string order, int pageNumber, int pageSize)

Fop

Fop Supported Operators ❗

Fop uses these query sign for preparing expression. We must know it for writing string queries ❗

Operators	Query Sign	Int	String	Char	DateTime
Equal	==	✔️	✔️	✔️	✔️
NotEqual	!=	✔️	✔️	✔️	✔️
GreaterThan	>	✔️	❌	❌	✔️
GreaterOrEqualThan	>=	✔️	❌	❌	✔️
LessThan	<	✔️	❌	❌	✔️
LessOrEqualThan	<=	✔️	❌	❌	✔️
Contains	~=	❌	✔️	❌	❌
NotContains	!~=	❌	✔️	❌	❌
StartsWith	_=	❌	✔️	❌	❌
NotStartsWith	!_=	❌	✔️	❌	❌
EndsWith	|=	❌	✔️	❌	❌
NotEndsWith	!|=	❌	✔️	❌	❌