com.centit.product.metadata.graphql

类 GraphQLExecutor

java.lang.Object

com.centit.product.metadata.graphql.GraphQLExecutor

public class GraphQLExecutor
extends Object

A GraphQL executor capable of constructing a GraphQLSchema from a JPA EntityManager. The executor uses the constructed schema to execute queries directly from the JPA data source.

If the executor is given a mutator function, it is feasible to manipulate the GraphQLSchema, introducing the option to add mutations, subscriptions etc.

构造器概要

构造器

限定符	构造器和说明
protected	GraphQLExecutor()
	GraphQLExecutor(MetaDataService metaDataService, com.centit.support.database.utils.DataSourceDescription databaseId) Creates a read-only GraphQLExecutor using the entities discovered from the given EntityManager.

方法概要

限定符和类型	方法和说明
protected void	createGraphQL()
graphql.ExecutionResult	execute(String query)
graphql.ExecutionResult	execute(String query, Map<String,Object> arguments)
graphql.schema.GraphQLSchema.Builder	getBuilder() Gets the builder that was used to create the Schema that this executor is basing its query executions on.
graphql.schema.GraphQLSchema	getGraphQLSchema()
graphql.schema.GraphQLSchema	getSchema() Returns the schema that this executor bases its queries on.
GraphQLExecutor	updateSchema(graphql.schema.GraphQLSchema.Builder builder) Uses the given builder to re-create and replace the GraphQLSchema that this executor uses to execute its queries.

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料

GraphQLExecutor

protected GraphQLExecutor()

GraphQLExecutor

public GraphQLExecutor(MetaDataService metaDataService,
                       com.centit.support.database.utils.DataSourceDescription databaseId)

Creates a read-only GraphQLExecutor using the entities discovered from the given EntityManager.

参数:

metaDataService - 元数据服务.

databaseId - 数据库id

方法详细资料

createGraphQL

@PostConstruct
protected void createGraphQL()

getGraphQLSchema

public graphql.schema.GraphQLSchema getGraphQLSchema()

返回:

The GraphQLSchema used by this executor.

execute

@Transactional
public graphql.ExecutionResult execute(String query)

execute

@Transactional
public graphql.ExecutionResult execute(String query,
                                                      Map<String,Object> arguments)

getBuilder

public graphql.schema.GraphQLSchema.Builder getBuilder()

Gets the builder that was used to create the Schema that this executor is basing its query executions on. The builder can be used to update the executor with the updateSchema(GraphQLSchema.Builder) method.

返回:

An instance of a builder.

getSchema

public graphql.schema.GraphQLSchema getSchema()

Returns the schema that this executor bases its queries on.

返回:

An instance of a GraphQLSchema.

updateSchema

public GraphQLExecutor updateSchema(graphql.schema.GraphQLSchema.Builder builder)

Uses the given builder to re-create and replace the GraphQLSchema that this executor uses to execute its queries.

参数:

builder - The builder to recreate the current GraphQLSchema and GraphQL instances.

返回:

The same executor but with a new GraphQL schema.