graphql-jpa | JPA Implementation of GraphQL | GraphQL library

by jcrygier Java Version: Current License: MIT

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

kandi X-RAY | graphql-jpa Summary

graphql-jpa is a Java library typically used in Web Services, GraphQL, JPA applications. graphql-jpa has no vulnerabilities, it has build file available, it has a Permissive License and it has low support. However graphql-jpa has 2 bugs. You can download it from GitHub.

If you’re already using JPA, then you already have a schema defined…don’t define it again just for GraphQL!. This is a simple project to extend [graphql-java] and have it derive the schema from a JPA model. It also implements an execution platform to generate and run JPA queries based on GraphQL queries. While limited, there is a lot of power bundled within. This project takes a somewhat opinionated view of GraphQL, by introducing things like Pagination, Aggregations, and Sorting. This project is intended on depending on very little: graphql-java, and some javax annotation packages. The tests depend on Spring (with Hibernate for JPA), and Spock for testing. These tests are a good illustration of how this library might be used, but any stack (with JPA) should be able to be utilized.

Support

Quality

Security

License

Reuse

Support

graphql-jpa has a low active ecosystem.

It has 159 star(s) with 44 fork(s). There are 9 watchers for this library.

It had no major release in the last 6 months.

There are 12 open issues and 15 have been closed. On average issues are closed in 97 days. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of graphql-jpa is current.

Quality

graphql-jpa has 2 bugs (0 blocker, 0 critical, 2 major, 0 minor) and 48 code smells.

Security

graphql-jpa has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

graphql-jpa code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

graphql-jpa 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

graphql-jpa 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.

graphql-jpa saves you 421 person hours of effort in developing the same functionality from scratch.

It has 997 lines of code, 61 functions and 14 files.

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

Top functions reviewed by kandi - BETA

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

Gets the page information
Extracts the page information
Gets the selected field
Gets the typed query
Gets the predicate
Convert a value to a Java type
Determine the type of the field
Gets attribute
Gets attribute type
Gets a type from a Java type
Get the basic attribute type
Returns the type of attribute
Re - creates a new GraphQLSchema instance
Creates the GraphQLSchema
Re - creates a new GraphQLScheche
Creates the GraphQLSchema
Create the standard attribute mappers
Creates the standard attribute mapper
Gets the query type
Gets the count query
Get the order by attribute
Executes the given query
Gets the query field definition
Construct query field definition
Find basic attributes
Checks if the attribute is valid
Executes the query and returns the result

Get all kandi verified functions for this library.

graphql-jpa Key Features

No Key Features are available at this moment for graphql-jpa.

graphql-jpa Examples and Code Snippets

No Code Snippets are available at this moment for graphql-jpa.

Community Discussions

Trending Discussions on graphql-jpa

No qualifying bean of type 'javax.persistence.EntityManager' available: expected single matching bean but found 2

QUESTION

No qualifying bean of type 'javax.persistence.EntityManager' available: expected single matching bean but found 2

Asked 2019-Sep-20 at 11:13

I have two entity manager configurations for two separate databases but when I try to auto-wire an entity manager in to configure my GraphQLExecutor bean I get an exception stating that there are two beans that match the criteria even though I've specified a unit name in the PersistenceContext.

Exception

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'graphQLExecutor': Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.NoUniqueBeanDefinitionException: No qualifying bean of type 'javax.persistence.EntityManager' available: expected single matching bean but found 2: org.springframework.orm.jpa.SharedEntityManagerCreator#0,org.springframework.orm.jpa.SharedEntityManagerCreator#1 at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessPropertyValues(CommonAnnotationBeanPostProcessor.java:321) ~[spring-context-4.3.9.RELEASE.jar:4.3.9.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1264) ~[spring-beans-4.3.9.RELEASE.jar:4.3.9.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:553) ~[spring-beans-4.3.9.RELEASE.jar:4.3.9.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483) ~[spring-beans-4.3.9.RELEASE.jar:4.3.9.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.3.9.RELEASE.jar:4.3.9.RELEASE] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.3.9.RELEASE.jar:4.3.9.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.3.9.RELEASE.jar:4.3.9.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) ~[spring-beans-4.3.9.RELEASE.jar:4.3.9.RELEASE] at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:761) ~[spring-beans-4.3.9.RELEASE.jar:4.3.9.RELEASE] at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:867) ~[spring-context-4.3.9.RELEASE.jar:4.3.9.RELEASE] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:543) ~[spring-context-4.3.9.RELEASE.jar:4.3.9.RELEASE] at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) ~[spring-boot-1.5.4.RELEASE.jar:1.5.4.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:693) [spring-boot-1.5.4.RELEASE.jar:1.5.4.RELEASE] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:360) [spring-boot-1.5.4.RELEASE.jar:1.5.4.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:303) [spring-boot-1.5.4.RELEASE.jar:1.5.4.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1118) [spring-boot-1.5.4.RELEASE.jar:1.5.4.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1107) [spring-boot-1.5.4.RELEASE.jar:1.5.4.RELEASE] at com.ogl.JpaDemoApplication.main(JpaDemoApplication.java:15) [classes/:na] Caused by: org.springframework.beans.factory.NoUniqueBeanDefinitionException: No qualifying bean of type 'javax.persistence.EntityManager' available: expected single matching bean but found 2: org.springframework.orm.jpa.SharedEntityManagerCreator#0,org.springframework.orm.jpa.SharedEntityManagerCreator#1 at org.springframework.beans.factory.config.DependencyDescriptor.resolveNotUnique(DependencyDescriptor.java:173) ~[spring-beans-4.3.9.RELEASE.jar:4.3.9.RELEASE] at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1116) ~[spring-beans-4.3.9.RELEASE.jar:4.3.9.RELEASE] at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1066) ~[spring-beans-4.3.9.RELEASE.jar:4.3.9.RELEASE] at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.autowireResource(CommonAnnotationBeanPostProcessor.java:518) ~[spring-context-4.3.9.RELEASE.jar:4.3.9.RELEASE] at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.getResource(CommonAnnotationBeanPostProcessor.java:496) ~[spring-context-4.3.9.RELEASE.jar:4.3.9.RELEASE] at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor$ResourceElement.getResourceToInject(CommonAnnotationBeanPostProcessor.java:627) ~[spring-context-4.3.9.RELEASE.jar:4.3.9.RELEASE] at org.springframework.beans.factory.annotation.InjectionMetadata$InjectedElement.inject(InjectionMetadata.java:169) ~[spring-beans-4.3.9.RELEASE.jar:4.3.9.RELEASE] at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88) ~[spring-beans-4.3.9.RELEASE.jar:4.3.9.RELEASE] at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessPropertyValues(CommonAnnotationBeanPostProcessor.java:318) ~[spring-context-4.3.9.RELEASE.jar:4.3.9.RELEASE] ... 17 common frames omitted

Entity Manager 1

...

ANSWER

Answered 2017-Jul-07 at 11:56

You have defined two entitymanager. Now you have to tell spring which one should injected. For this you can use the @Qualifier Annotation:

Source https://stackoverflow.com/questions/44970133

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

Vulnerabilities

No vulnerabilities reported

Install graphql-jpa

You can download it from GitHub.
You can use graphql-jpa 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 graphql-jpa 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

A major part of GraphQL is the ability to have a well documented schema. This project takes advantage of this, and produces descriptions for each Entity in the schema. For the built in types (e.g. PaginationObject) these are rather hard-coded without much control from the end user. However, for each Entity / Member that is in your JPA schema, you can document what it’s for. These descriptions are controlled by the @SchemaDocumentation attribute on either a class level, or a field level of your model. These descriptions will show up in the GraphiQL browser automatically, and generally helps when providing an API to your end-users. See the GraphiQL section below for more details.

Find more information at: