SpecificationBuilder | Object-Relational Mapping library

by KeshawnVan Java Version: Current License: No License

X-Ray Key Features Code Snippets Community Discussions(1)Vulnerabilities Install Support

kandi X-RAY | SpecificationBuilder Summary

SpecificationBuilder is a Java library typically used in Utilities, Object-Relational Mapping, JPA applications. SpecificationBuilder has no bugs, it has no vulnerabilities, it has build file available and it has low support. You can download it from GitHub.

SpecificationBuilder

Support

Quality

Security

License

Reuse

Support

SpecificationBuilder has a low active ecosystem.

It has 7 star(s) with 5 fork(s). There are no watchers for this library.

It had no major release in the last 6 months.

There are 0 open issues and 1 have been closed. On average issues are closed in 31 days. There are 1 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of SpecificationBuilder is current.

Quality

SpecificationBuilder has no bugs reported.

Security

SpecificationBuilder has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

SpecificationBuilder does not have a standard license declared.

Check the repository for any license declaration and review the terms closely.

Without a license, all rights are reserved, and you cannot use the library in your applications.

Reuse

SpecificationBuilder 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.

Installation instructions are not available. Examples and code snippets are available.

Top functions reviewed by kandi - BETA

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

Main entry point
Builds a specification from a field
Get all fields for a given class
Add all superclass fields for the given superclass
Field parse method
Handler for like %
Handle collection
Append predicate
Gets actual type arguments
Checks if is primitive
Gets raw class
Creates a new instance of the specified class
Sets the value of a field
Gets the field from an object
Invoke a method
Checks field access

Get all kandi verified functions for this library.

SpecificationBuilder Key Features

No Key Features are available at this moment for SpecificationBuilder.

SpecificationBuilder Examples and Code Snippets

No Code Snippets are available at this moment for SpecificationBuilder.

Community Discussions

Trending Discussions on SpecificationBuilder

Specification/Predicate to search different fields based on instance type Spring

QUESTION

Specification/Predicate to search different fields based on instance type Spring

Asked 2018-Dec-24 at 14:42

Lets say that i have an abstract class Product and i have two more entities that extend it ProductA and ProductB with different fields. I am using Product repository to search for all of them using Specification and SpecificationBuilder using some common fields. What i want to accomplish is to detect what type of product it is (A or B) and based on that to use different search query.

For example ProductA has stock and ProductB has featured so naturally if i insert search criteria quantity and try to do a specification on Product repo, i would like the api to search for ProductA. Is this form of search possible in any way? This is my current code:

...

ANSWER

Answered 2018-Dec-24 at 14:42

As far as I know there is no "nice way" of doing this (if you want to preserve the type), but you could employ one of the following solutions:

0. Switch case generally I am really against switch and case in Java but it has its own place... The easiest solution is to build your query in separate cases as well... they are separate cases (pun not intended).

From your question I assume that you have a way more complicated structure than the presented one, so next I have two possible solutions for you.

1. Programmatic solution You could create a solution based on reflection. You can have a full solution implementing some interesting logic. Mainly you have to have a list from the objects that are "searchable" in this feature. In a loop you can use reflection to determine if the field is "acceptable" in the entity. (For example ˙stock˙ is only acceptable in PRODUCT_A so the creation of the criteria will be based on that Entity. I definitely do not recommend this approach as this could introduce a lot of problems. (For example how would you handle if stock and featured is set simultaneously in your DTO?

2. create a view to construct your search basically you create a database view and an entity in Spring having all the possible parameters.

Original tables:

Source https://stackoverflow.com/questions/53808510

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

Vulnerabilities

No vulnerabilities reported

Install SpecificationBuilder

You can download it from GitHub.
You can use SpecificationBuilder 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 SpecificationBuilder 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 .

Find more information at: