Serialize a Parsed Lambda Expression to Database
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I have users who will generate business rules via simple statements that result in true or false
Example: Result > 10 AND Result < 100
I am using Linq.Dynamic to convert these statements I am finding the ParseLambda is taking too long (simple example took 21ms). So I would like to save the Lambda Expression to the database to pull and use later. From my testing I have found the call to ParseLambda is taking the most time, therefore I am wondering if it is possible to serialize this Lambda Expression and persist to a database pulling it when needed. The idea is to have it saved to the database already parsed.
Maybe this is the wrong approach all together. I thought about using CodeDom and scripting but found I would have to create an assembly for every rule, which would pollute the AppDomain, I could have over 1000 rules.
I am open to other options, maybe there is a better library out there.
ParameterExpression P = Expression.Parameter(typeof(InternalEvalData), _ParameterHeading);
LambdaExpression X = System.Linq.Dynamic.DynamicExpression.ParseLambda(new P , null, parsedExpression);
result = (bool)d.DynamicInvoke(testData);
c# dynamic expression
asked Nov 10 at 20:41
Steve S
94312
add a comment |
up vote
1
down vote
favorite
I have users who will generate business rules via simple statements that result in true or false
Example: Result > 10 AND Result < 100
I am using Linq.Dynamic to convert these statements I am finding the ParseLambda is taking too long (simple example took 21ms). So I would like to save the Lambda Expression to the database to pull and use later. From my testing I have found the call to ParseLambda is taking the most time, therefore I am wondering if it is possible to serialize this Lambda Expression and persist to a database pulling it when needed. The idea is to have it saved to the database already parsed.
Maybe this is the wrong approach all together. I thought about using CodeDom and scripting but found I would have to create an assembly for every rule, which would pollute the AppDomain, I could have over 1000 rules.
I am open to other options, maybe there is a better library out there.
ParameterExpression P = Expression.Parameter(typeof(InternalEvalData), _ParameterHeading);
LambdaExpression X = System.Linq.Dynamic.DynamicExpression.ParseLambda(new P , null, parsedExpression);
result = (bool)d.DynamicInvoke(testData);
c# dynamic expression
asked Nov 10 at 20:41
Steve S
94312
add a comment |
up vote
1
down vote
favorite
up vote
1
down vote
favorite
I have users who will generate business rules via simple statements that result in true or false
Example: Result > 10 AND Result < 100
I am using Linq.Dynamic to convert these statements I am finding the ParseLambda is taking too long (simple example took 21ms). So I would like to save the Lambda Expression to the database to pull and use later. From my testing I have found the call to ParseLambda is taking the most time, therefore I am wondering if it is possible to serialize this Lambda Expression and persist to a database pulling it when needed. The idea is to have it saved to the database already parsed.
Maybe this is the wrong approach all together. I thought about using CodeDom and scripting but found I would have to create an assembly for every rule, which would pollute the AppDomain, I could have over 1000 rules.
I am open to other options, maybe there is a better library out there.
ParameterExpression P = Expression.Parameter(typeof(InternalEvalData), _ParameterHeading);
LambdaExpression X = System.Linq.Dynamic.DynamicExpression.ParseLambda(new P , null, parsedExpression);
result = (bool)d.DynamicInvoke(testData);
c# dynamic expression
asked Nov 10 at 20:41
Steve S
94312
I have users who will generate business rules via simple statements that result in true or false
Example: Result > 10 AND Result < 100
I am using Linq.Dynamic to convert these statements I am finding the ParseLambda is taking too long (simple example took 21ms). So I would like to save the Lambda Expression to the database to pull and use later. From my testing I have found the call to ParseLambda is taking the most time, therefore I am wondering if it is possible to serialize this Lambda Expression and persist to a database pulling it when needed. The idea is to have it saved to the database already parsed.
Maybe this is the wrong approach all together. I thought about using CodeDom and scripting but found I would have to create an assembly for every rule, which would pollute the AppDomain, I could have over 1000 rules.
I am open to other options, maybe there is a better library out there.
ParameterExpression P = Expression.Parameter(typeof(InternalEvalData), _ParameterHeading);
LambdaExpression X = System.Linq.Dynamic.DynamicExpression.ParseLambda(new P , null, parsedExpression);
result = (bool)d.DynamicInvoke(testData);
c# dynamic expression
c# dynamic expression
asked Nov 10 at 20:41
Steve S
94312
asked Nov 10 at 20:41
Steve S
94312
asked Nov 10 at 20:41
Steve S
94312
asked Nov 10 at 20:41
Steve S
94312
asked Nov 10 at 20:41
Steve S
94312
94312
add a comment |
add a comment |
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