specification-pattern | https : //medium.com/ @ | Object-Relational Mapping library

by carlosraphael Java Version: Current License: MIT

X-Ray Key Features Code Snippets Community Discussions(3)Vulnerabilities Install Support

kandi X-RAY | specification-pattern Summary

specification-pattern is a Java library typically used in Utilities, Object-Relational Mapping, Hibernate applications. specification-pattern has no bugs, it has no vulnerabilities, it has build file available, it has a Permissive License and it has high support. You can download it from GitHub.

https://medium.com/@carlosraphael/specification-design-pattern-in-java-8-bac6f5f943bc

Support

Quality

Security

License

Reuse

Support

specification-pattern has a highly active ecosystem.

It has 21 star(s) with 4 fork(s). There are 2 watchers for this library.

It had no major release in the last 6 months.

specification-pattern has no issues reported. There are no pull requests.

It has a positive sentiment in the developer community.

The latest version of specification-pattern is current.

Quality

specification-pattern has 0 bugs and 0 code smells.

Security

specification-pattern has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

specification-pattern code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

specification-pattern is licensed under the MIT License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

specification-pattern releases are not available. You will need to build from source code and install.

Build file is available. You can build the component from source.

specification-pattern saves you 359 person hours of effort in developing the same functionality from scratch.

It has 857 lines of code, 56 functions and 28 files.

It has low code complexity. Code complexity directly impacts maintainability of the code.

Top functions reviewed by kandi - BETA

kandi has reviewed specification-pattern and discovered the below as its top functions. This is intended to give you an instant insight into specification-pattern implemented functionality, and help decide if they suit your requirements.

Changes the specified children
Adds the specified children to this node
Removes the specified children
Changes the specified specifications
Adds the specified specifications to the list of specifications
Removes the specified specifications
On creation
On create
Convert a specification to a SpecificationPredicate
Returns a specification predicate from a stream
Creates a tuple with the return type and getter method
Returns a call site for the given getter method
Combine the two specifications into a new one
Gets the children of this node
Combine between two values
Returns an unmodifiable set of specifications
Returns the given set of specifications as a predicate
Flatten this stream into a new stream
Launch the specification pattern
Adds a child specification
Checks if the method is a getter

Get all kandi verified functions for this library.

specification-pattern Key Features

No Key Features are available at this moment for specification-pattern.

specification-pattern Examples and Code Snippets

No Code Snippets are available at this moment for specification-pattern.

Community Discussions

Trending Discussions on specification-pattern

How to handle Includes with Entity Framework Core in Domain Driven Design

"The parameter was not bound in the specified LINQ to Entities query expression." Specification Pattern And

Entity Framework "Code supposed to be unreachable" on agrigated include expression

QUESTION

How to handle Includes with Entity Framework Core in Domain Driven Design

Asked 2021-Mar-22 at 17:41

I am fairly new with the concept of domain driven design and just need a nudge in the right direction. I couldn't find anything on the internet for my problem that I am satisfied with. I have an application I built following the domain driven design. Now I am wondering how I can implement includes without using EFC in my application layer. I have a presentational layer (Web API), an application layer that consists of commands and queries (I am using CQRS), a domain layer which stores my models and has the core business logic and my persistence layer that implements Entity Framework Core and a generic repository that looks like this:

...

ANSWER

Answered 2021-Mar-22 at 17:41

As you have mentioned in the question, using Generic Repository is not recommended by most DDD practitioners, because you lose the Meaningful Contract aspect of Repository in DDD, but if you insist, you can enrich your Generic Repository to have necessary aspects of your ORM like include in Entity Framework.

Be careful of adding more functionalities in your Generic Repository because it gradually transforms to a DAO.

Your Generic Repository could be something like this:

Source https://stackoverflow.com/questions/66749054

QUESTION

"The parameter was not bound in the specified LINQ to Entities query expression." Specification Pattern And

Asked 2020-Feb-27 at 18:32

I follow the specification pattern implementation described here. I have a repository method looking like this:

...

ANSWER

Answered 2020-Feb-27 at 18:32

The problem is in your ToExpression method.

leftExpression and rightExpression are each a LambdaExpression, and each have their own, distinct T parameter.

When you create the LambdaExpression you return from ToExpression, you say that this should use the parameter from leftExpression. But what about the parameter that's used in rightExpression? rightExpression.Body contains expressions which use rightExpression.Parameters[0], and they'll still continue to reference the object rightExpression.Parameters[0] even after you take rightExpression.Body and put it in another expression.

You need to rewrite rightExpression to use the same parameter as leftExpression. The easiest way to do this is using an ExpressionVisitor.

First, create an ExpressionVisitor which simply replaces one parameter with another:

Source https://stackoverflow.com/questions/60438862

QUESTION

Entity Framework "Code supposed to be unreachable" on agrigated include expression

Asked 2019-Jun-01 at 14:37

First

I have created this GitHub repo that only needs to be F5 to hit this error so it should be easy for you to try this out. All links in this question lead to that repo.

Flow of code

The following expression code in my controller is where I want to give the front end developers the power to include the relations they need.

...

ANSWER

Answered 2019-Jun-01 at 14:37

As I was suspecting, the issue has nothing in common with EF, but invalid expression produced by AutoMapper expression translation here:

Source https://stackoverflow.com/questions/56393236

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install specification-pattern

You can download it from GitHub.
You can use specification-pattern like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the specification-pattern component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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