io.stargate.graphql.schema

Class CassandraFetcher<ResultT>

java.lang.Object

io.stargate.graphql.schema.CassandraFetcher<ResultT>

All Implemented Interfaces:

graphql.schema.DataFetcher<ResultT>

Direct Known Subclasses:

AllKeyspacesFetcher, DdlQueryFetcher, DeploySchemaFetcher, DeploySchemaFileFetcher, DmlFetcher, FederatedEntityFetcher, MutationFetcher, QueryFetcher, SchemaFetcher, SingleKeyspaceFetcher, UndeploySchemaFetcher

public abstract class CassandraFetcher<ResultT>
extends Object
implements graphql.schema.DataFetcher<ResultT>

Base class for fetchers that access the Cassandra backend. It also handles authentication.

Field Summary

Fields

Modifier and Type	Field and Description
static ConsistencyLevel	DEFAULT_CONSISTENCY
static int	DEFAULT_PAGE_SIZE
static Parameters	DEFAULT_PARAMETERS
static ConsistencyLevel	DEFAULT_SERIAL_CONSISTENCY

Constructor Summary

Constructors

Constructor and Description
CassandraFetcher()

Method Summary

Modifier and Type	Method and Description
ResultT	get(graphql.schema.DataFetchingEnvironment environment)
protected abstract ResultT	get(graphql.schema.DataFetchingEnvironment environment, StargateGraphqlContext context)
protected boolean	isAppliedBatch(List<Row> batchRows)

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_CONSISTENCY

public static final ConsistencyLevel DEFAULT_CONSISTENCY

DEFAULT_SERIAL_CONSISTENCY

public static final ConsistencyLevel DEFAULT_SERIAL_CONSISTENCY

DEFAULT_PAGE_SIZE

public static final int DEFAULT_PAGE_SIZE

See Also:

Constant Field Values

DEFAULT_PARAMETERS

public static final Parameters DEFAULT_PARAMETERS

Constructor Detail

CassandraFetcher

public CassandraFetcher()

Method Detail

get

public final ResultT get(graphql.schema.DataFetchingEnvironment environment)
                  throws Exception

Specified by:

get in interface graphql.schema.DataFetcher<ResultT>

Throws:

Exception

get

protected abstract ResultT get(graphql.schema.DataFetchingEnvironment environment,
                               StargateGraphqlContext context)
                        throws Exception

Throws:

Exception

isAppliedBatch

protected boolean isAppliedBatch(List<Row> batchRows)