io.stargate.sgv2.graphql.schema

Class CassandraFetcher<ResultT>

java.lang.Object

io.stargate.sgv2.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.

Field Summary

Fields

Modifier and Type	Field and Description
static io.stargate.bridge.proto.QueryOuterClass.ConsistencyValue	DEFAULT_CONSISTENCY
static int	DEFAULT_PAGE_SIZE
static io.stargate.bridge.proto.QueryOuterClass.QueryParameters	DEFAULT_PARAMETERS
static io.stargate.bridge.proto.QueryOuterClass.ConsistencyValue	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	isApplied(io.stargate.bridge.proto.QueryOuterClass.ResultSet resultSet)
protected boolean	isApplied(io.stargate.bridge.proto.QueryOuterClass.Row row, List<io.stargate.bridge.proto.QueryOuterClass.ColumnSpec> columns)

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 io.stargate.bridge.proto.QueryOuterClass.ConsistencyValue DEFAULT_CONSISTENCY

DEFAULT_SERIAL_CONSISTENCY

public static final io.stargate.bridge.proto.QueryOuterClass.ConsistencyValue DEFAULT_SERIAL_CONSISTENCY

DEFAULT_PAGE_SIZE

public static final int DEFAULT_PAGE_SIZE

See Also:

Constant Field Values

DEFAULT_PARAMETERS

public static final io.stargate.bridge.proto.QueryOuterClass.QueryParameters 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

isApplied

protected boolean isApplied(io.stargate.bridge.proto.QueryOuterClass.ResultSet resultSet)

isApplied

protected boolean isApplied(io.stargate.bridge.proto.QueryOuterClass.Row row,
                            List<io.stargate.bridge.proto.QueryOuterClass.ColumnSpec> columns)