GQLContext (Providence Utils : GraphQL 2.0-beta1 API)

java.lang.Object
- net.morimekta.providence.graphql.GQLContext

All Implemented Interfaces:

java.lang.AutoCloseable
```
public abstract class GQLContext
extends java.lang.Object
implements java.lang.AutoCloseable
```
The GQL context is created once per query method call, and once for the whole operation for mutations. Note that GQLServlet can be updated to handle queries serially as mutations if need be.

Constructor Summary

Constructors
Modifier Constructor Description

protected GQLContext(javax.servlet.http.HttpServletRequest request, GQLOperation operation)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`abort(java.lang.Exception ex)`	Implement if a failed context session ends in failure, e.g. update failure.
`void`	`commit()`	Implement if a successful request is passed, and e.g. a transaction needs to be committed (instead of aborted).
`GQLOperation`	`getOperation()`
`javax.servlet.http.HttpServletRequest`	`getRequest()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.lang.AutoCloseable
close

- Constructor Detail
  - GQLContext
```
protected GQLContext(@Nonnull
                     javax.servlet.http.HttpServletRequest request,
                     @Nonnull
                     GQLOperation operation)
```
- Method Detail
  - getRequest
```
public javax.servlet.http.HttpServletRequest getRequest()
```
    Returns:
    
    The HTTP request that initiated the GQL operation.
  - getOperation
```
public GQLOperation getOperation()
```
    Returns:
    
    The GQL operation to be handled.
  - commit
```
public void commit()
            throws java.lang.Exception
```
    Implement if a successful request is passed, and e.g. a transaction needs to be committed (instead of aborted). This method is called when the last method call has passed for the context. It will be called before close.
    
    Throws:
    
    java.lang.Exception - If committing failed.
  - abort
```
public void abort(java.lang.Exception ex)
           throws java.lang.Exception
```
    Implement if a failed context session ends in failure, e.g. update failure. This can be used to trigger transaction abort procedure etc. This will also trigger if commit() throws exception.
    
    Parameters:
    
    ex - The exception causing the abort.
    
    Throws:
    
    java.lang.Exception - If the abort procedure failed.