SchemaGeneratorHooks

```
public SchemaGeneratorHooks
```
Collection of all the hooks when generating a schema. Hooks are lifecycle events that are called and triggered while the schema is building that allow users to customize the schema.

Nested Class Summary

Nested Classes
Modifier and Type	Interface and Description
`static class`	`SchemaGeneratorHooks.DefaultImpls` Collection of all the hooks when generating a schema. Hooks are lifecycle events that are called and triggered while the schema is building that allow users to customize the schema.

Method Summary

All Methods Instance Methods Default Methods
Modifier and Type	Method and Description
`void`	`didGenerateGraphQLType(kotlin.reflect.KType type, graphql.schema.GraphQLType generatedType)` Called after wrapping the type based on nullity but before adding the generated type to the schema
`graphql.schema.GraphQLFieldDefinition`	`didGenerateMutationType(kotlin.reflect.KFunction<?> function, graphql.schema.GraphQLFieldDefinition fieldDefinition)` Called after converting the function to a field definition but before adding to the schema to allow customization
`graphql.schema.GraphQLFieldDefinition`	`didGenerateQueryType(kotlin.reflect.KFunction<?> function, graphql.schema.GraphQLFieldDefinition fieldDefinition)` Called after converting the function to a field definition but before adding to the schema to allow customization
`DataFetcherExecutionPredicate`	`getDataFetcherExecutionPredicate()` Execute a predicate on each function parameters after their deserialization If the execution is unsuccessful the `onFailure` method will be invoked
`boolean`	`isValidFunction(kotlin.reflect.KFunction<?> function)` Called when looking at the KClass functions to determine if it valid for adding to the generated schema. If any filter returns false, it is rejected.
`boolean`	`isValidProperty(kotlin.reflect.KProperty<?> property)` Called when looking at the KClass properties to determine if it valid for adding to the generated schema. If any filter returns false, it is rejected.
`boolean`	`isValidSuperclass(kotlin.reflect.KClass<?> kClass)` Called when looking at the KClass superclasses to determine if it valid for adding to the generated schema. If any filter returns false, it is rejected.
`graphql.schema.GraphQLType`	`onRewireGraphQLType(kotlin.reflect.KType type, graphql.schema.GraphQLType generatedType)` Called after `willGenerateGraphQLType` and before `didGenerateGraphQLType`. Enables you to change the wiring, e.g. directives to alter data fetchers.
`graphql.schema.GraphQLSchema.Builder`	`willBuildSchema(graphql.schema.GraphQLSchema.Builder builder)` Called before the final GraphQL schema is built. This doesn't prevent the called from rebuilding the final schema using java-graphql's functionality
`graphql.schema.GraphQLType`	`willGenerateGraphQLType(kotlin.reflect.KType type)` Called before using reflection to generate the graphql object type for the given KType. This allows supporting objects that the caller does not want to use reflection on for special handling
`kotlin.reflect.KType`	`willResolveMonad(kotlin.reflect.KType type)` Called before resolving a KType to the GraphQL type. This allows for a custom resolver on how to extract wrapped values, like in a CompletableFuture.

- Method Detail
  - willBuildSchema
```
graphql.schema.GraphQLSchema.Builder willBuildSchema(graphql.schema.GraphQLSchema.Builder builder)
```
    Called before the final GraphQL schema is built. This doesn't prevent the called from rebuilding the final schema using java-graphql's functionality
  - willGenerateGraphQLType
```
graphql.schema.GraphQLType willGenerateGraphQLType(kotlin.reflect.KType type)
```
    Called before using reflection to generate the graphql object type for the given KType. This allows supporting objects that the caller does not want to use reflection on for special handling
  - willResolveMonad
```
kotlin.reflect.KType willResolveMonad(kotlin.reflect.KType type)
```
    Called before resolving a KType to the GraphQL type. This allows for a custom resolver on how to extract wrapped values, like in a CompletableFuture.
  - isValidSuperclass
```
boolean isValidSuperclass(kotlin.reflect.KClass<?> kClass)
```
    Called when looking at the KClass superclasses to determine if it valid for adding to the generated schema. If any filter returns false, it is rejected.
  - isValidProperty
```
boolean isValidProperty(kotlin.reflect.KProperty<?> property)
```
    Called when looking at the KClass properties to determine if it valid for adding to the generated schema. If any filter returns false, it is rejected.
  - isValidFunction
```
boolean isValidFunction(kotlin.reflect.KFunction<?> function)
```
    Called when looking at the KClass functions to determine if it valid for adding to the generated schema. If any filter returns false, it is rejected.
  - onRewireGraphQLType
```
graphql.schema.GraphQLType onRewireGraphQLType(kotlin.reflect.KType type,
                                               graphql.schema.GraphQLType generatedType)
```
    Called after willGenerateGraphQLType and before didGenerateGraphQLType. Enables you to change the wiring, e.g. directives to alter data fetchers.
  - didGenerateGraphQLType
```
void didGenerateGraphQLType(kotlin.reflect.KType type,
                            graphql.schema.GraphQLType generatedType)
```
    Called after wrapping the type based on nullity but before adding the generated type to the schema
  - didGenerateQueryType
```
graphql.schema.GraphQLFieldDefinition didGenerateQueryType(kotlin.reflect.KFunction<?> function,
                                                           graphql.schema.GraphQLFieldDefinition fieldDefinition)
```
    Called after converting the function to a field definition but before adding to the schema to allow customization
  - didGenerateMutationType
```
graphql.schema.GraphQLFieldDefinition didGenerateMutationType(kotlin.reflect.KFunction<?> function,
                                                              graphql.schema.GraphQLFieldDefinition fieldDefinition)
```
    Called after converting the function to a field definition but before adding to the schema to allow customization
  - getDataFetcherExecutionPredicate
```
DataFetcherExecutionPredicate getDataFetcherExecutionPredicate()
```
    Execute a predicate on each function parameters after their deserialization If the execution is unsuccessful the onFailure method will be invoked

Interface SchemaGeneratorHooks

Nested Class Summary

Method Summary

Method Detail

willBuildSchema

willGenerateGraphQLType

willResolveMonad

isValidSuperclass

isValidProperty

isValidFunction

onRewireGraphQLType

didGenerateGraphQLType

didGenerateQueryType

didGenerateMutationType

getDataFetcherExecutionPredicate