org.apache.samza.table.remote.couchbase

Class CouchbaseTableReadFunction<V>

java.lang.Object

org.apache.samza.table.remote.BaseTableFunction

org.apache.samza.table.remote.couchbase.BaseCouchbaseTableFunction<V>

org.apache.samza.table.remote.couchbase.CouchbaseTableReadFunction<V>

Type Parameters:

V - Type of values to read from Couchbase

All Implemented Interfaces:

java.io.Serializable, org.apache.samza.operators.functions.ClosableFunction, org.apache.samza.table.remote.TableFunction, org.apache.samza.table.remote.TablePart, org.apache.samza.table.remote.TableReadFunction<java.lang.String,V>

public class CouchbaseTableReadFunction<V>
extends BaseCouchbaseTableFunction<V>
implements org.apache.samza.table.remote.TableReadFunction<java.lang.String,V>

TableReadFunction implementation for reading from Couchbase. The value type can be either JsonObject or any other Object. If the value type is JsonObject, data in JSON format will be read from Couchbase directly as JsonObject. Otherwise, a Serde needs to be provided to serialize and deserialize the value object.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected java.lang.Class<? extends com.couchbase.client.java.document.Document<?>>	documentType

Fields inherited from class org.apache.samza.table.remote.couchbase.BaseCouchbaseTableFunction

bucket, bucketName, clusterNodes, environmentConfigs, timeout, ttl, valueSerde

Fields inherited from class org.apache.samza.table.remote.BaseTableFunction

table

Constructor Summary

Constructors

Constructor and Description
CouchbaseTableReadFunction(java.lang.String bucketName, java.lang.Class<V> valueClass, java.lang.String... clusterNodes) Construct an instance of CouchbaseTableReadFunction.

Method Summary

Modifier and Type	Method and Description
java.util.concurrent.CompletableFuture<V>	getAsync(java.lang.String key)
protected void	handleGetAsyncBinaryDocument(com.couchbase.client.java.document.BinaryDocument binaryDocument, java.util.concurrent.CompletableFuture<V> future, java.lang.String key)
void	init(org.apache.samza.context.Context context, org.apache.samza.table.AsyncReadWriteTable table)

Methods inherited from class org.apache.samza.table.remote.couchbase.BaseCouchbaseTableFunction

close, isRetriable, withBootstrapCarrierDirectPort, withBootstrapCarrierSslPort, withBootstrapHttpDirectPort, withBootstrapHttpSslPort, withSerde, withSslEnabledAndCertAuthEnabled, withSslKeystoreFileAndPassword, withSslTruststoreFileAndPassword, withTimeout, withTtl, withUsernameAndPassword

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.samza.table.remote.TableReadFunction

get, getAll, getAllAsync, getAllAsync, getAsync, readAsync

Methods inherited from interface org.apache.samza.table.remote.TableFunction

isRetriable

Methods inherited from interface org.apache.samza.table.remote.TablePart

toConfig

Methods inherited from interface org.apache.samza.operators.functions.ClosableFunction

close

Field Detail

documentType

protected final java.lang.Class<? extends com.couchbase.client.java.document.Document<?>> documentType

Constructor Detail

CouchbaseTableReadFunction

public CouchbaseTableReadFunction(java.lang.String bucketName,
                                  java.lang.Class<V> valueClass,
                                  java.lang.String... clusterNodes)

Construct an instance of CouchbaseTableReadFunction.

Parameters:

bucketName - Name of the couchbase bucket

clusterNodes - Some Hosts of the Couchbase cluster. Recommended to provide more than one nodes so that if the first node could not be connected, other nodes can be tried.

valueClass - Type of values

Method Detail

init

public void init(org.apache.samza.context.Context context,
                 org.apache.samza.table.AsyncReadWriteTable table)

Specified by:

init in interface org.apache.samza.table.remote.TableFunction

Overrides:

init in class BaseCouchbaseTableFunction<V>

getAsync

public java.util.concurrent.CompletableFuture<V> getAsync(java.lang.String key)

Specified by:

getAsync in interface org.apache.samza.table.remote.TableReadFunction<java.lang.String,V>

handleGetAsyncBinaryDocument

protected void handleGetAsyncBinaryDocument(com.couchbase.client.java.document.BinaryDocument binaryDocument,
                                            java.util.concurrent.CompletableFuture<V> future,
                                            java.lang.String key)