org.apache.beam.sdk.io.mongodb

Class MongoDbIO.Read

java.lang.Object

org.apache.beam.sdk.transforms.PTransform<org.apache.beam.sdk.values.PBegin,org.apache.beam.sdk.values.PCollection<org.bson.Document>>

org.apache.beam.sdk.io.mongodb.MongoDbIO.Read

All Implemented Interfaces:

java.io.Serializable, org.apache.beam.sdk.transforms.display.HasDisplayData

Enclosing class:

MongoDbIO

public abstract static class MongoDbIO.Read
extends org.apache.beam.sdk.transforms.PTransform<org.apache.beam.sdk.values.PBegin,org.apache.beam.sdk.values.PCollection<org.bson.Document>>

A PTransform to read data from MongoDB.

See Also:

Serialized Form

Field Summary

Fields inherited from class org.apache.beam.sdk.transforms.PTransform

name

Constructor Summary

Constructors

Constructor and Description
Read()

Method Summary

Modifier and Type	Method and Description
org.apache.beam.sdk.values.PCollection<org.bson.Document>	expand(org.apache.beam.sdk.values.PBegin input)
long	getDocumentCount()
void	populateDisplayData(org.apache.beam.sdk.transforms.display.DisplayData.Builder builder)
MongoDbIO.Read	withBucketAuto(boolean bucketAuto) Sets weather to use $bucketAuto or not.
MongoDbIO.Read	withCollection(java.lang.String collection) Sets the collection to consider in the database.
MongoDbIO.Read	withDatabase(java.lang.String database) Sets the database to use.
MongoDbIO.Read	withFilter(java.lang.String filter) Deprecated. Filtering manually is discouraged. Use with {@link FindQuery#withFilters(Bson)} as an argument to set up the projection.
MongoDbIO.Read	withIgnoreSSLCertificate(boolean ignoreSSLCertificate) Enable ignoreSSLCertificate for ssl for connection (allow for self signed certificates).
MongoDbIO.Read	withMaxConnectionIdleTime(int maxConnectionIdleTime) Sets the maximum idle time for a pooled connection.
MongoDbIO.Read	withNumSplits(int numSplits) Sets the user defined number of splits.
MongoDbIO.Read	withProjection(java.lang.String... fieldNames) Deprecated. Use with {@link FindQuery#withProjection(List)} as an argument to set up the projection.
MongoDbIO.Read	withQueryFn(org.apache.beam.sdk.transforms.SerializableFunction<com.mongodb.client.MongoCollection<org.bson.Document>,com.mongodb.client.MongoCursor<org.bson.Document>> queryBuilderFn) Sets a queryFn.
MongoDbIO.Read	withSSLEnabled(boolean sslEnabled) Enable ssl for connection.
MongoDbIO.Read	withSSLInvalidHostNameAllowed(boolean invalidHostNameAllowed) Enable invalidHostNameAllowed for ssl for connection.
MongoDbIO.Read	withUri(java.lang.String uri) Define the location of the MongoDB instances using an URI.

Methods inherited from class org.apache.beam.sdk.transforms.PTransform

compose, compose, getAdditionalInputs, getDefaultOutputCoder, getDefaultOutputCoder, getDefaultOutputCoder, getKindString, getName, toString, validate

Methods inherited from class java.lang.Object

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

Constructor Detail

Read

public Read()

Method Detail

withUri

public MongoDbIO.Read withUri(java.lang.String uri)

Define the location of the MongoDB instances using an URI. The URI describes the hosts to be used and some options.

The format of the URI is:

 mongodb://[username:password@]host1[:port1]...[,hostN[:portN]]][/[database][?options]]
 

Where:

• mongodb:// is a required prefix to identify that this is a string in the standard connection format.
• username:password@ are optional. If given, the driver will attempt to login to a database after connecting to a database server. For some authentication mechanisms, only the username is specified and the password is not, in which case the ":" after the username is left off as well.
• host1 is the only required part of the URI. It identifies a server address to connect to.
• :portX is optional and defaults to :27017 if not provided.
• /database is the name of the database to login to and thus is only relevant if the username:password@ syntax is used. If not specified, the "admin" database will be used by default. It has to be equivalent with the database you specific with withDatabase(String).
• ?options are connection options. Note that if database is absent there is still a / required between the last host and the ? introducing the options. Options are name=value pairs and the pairs are separated by "&". You can pass the MaxConnectionIdleTime connection option via withMaxConnectionIdleTime(int).

withMaxConnectionIdleTime

public MongoDbIO.Read withMaxConnectionIdleTime(int maxConnectionIdleTime)

Sets the maximum idle time for a pooled connection.

withSSLEnabled

public MongoDbIO.Read withSSLEnabled(boolean sslEnabled)

Enable ssl for connection.

withSSLInvalidHostNameAllowed

public MongoDbIO.Read withSSLInvalidHostNameAllowed(boolean invalidHostNameAllowed)

Enable invalidHostNameAllowed for ssl for connection.

withIgnoreSSLCertificate

public MongoDbIO.Read withIgnoreSSLCertificate(boolean ignoreSSLCertificate)

Enable ignoreSSLCertificate for ssl for connection (allow for self signed certificates).

withDatabase

public MongoDbIO.Read withDatabase(java.lang.String database)

Sets the database to use.

withCollection

public MongoDbIO.Read withCollection(java.lang.String collection)

Sets the collection to consider in the database.

withFilter

@Deprecated
public MongoDbIO.Read withFilter(java.lang.String filter)

Deprecated. Filtering manually is discouraged. Use with {@link FindQuery#withFilters(Bson)} as an argument to set up the projection.

Sets a filter on the documents in a collection.

withProjection

@Deprecated
public MongoDbIO.Read withProjection(java.lang.String... fieldNames)

Deprecated. Use with {@link FindQuery#withProjection(List)} as an argument to set up the projection.

Sets a projection on the documents in a collection.

withNumSplits

public MongoDbIO.Read withNumSplits(int numSplits)

Sets the user defined number of splits.

withBucketAuto

public MongoDbIO.Read withBucketAuto(boolean bucketAuto)

Sets weather to use $bucketAuto or not.

withQueryFn

public MongoDbIO.Read withQueryFn(org.apache.beam.sdk.transforms.SerializableFunction<com.mongodb.client.MongoCollection<org.bson.Document>,com.mongodb.client.MongoCursor<org.bson.Document>> queryBuilderFn)

Sets a queryFn.

expand

public org.apache.beam.sdk.values.PCollection<org.bson.Document> expand(org.apache.beam.sdk.values.PBegin input)

Specified by:

expand in class org.apache.beam.sdk.transforms.PTransform<org.apache.beam.sdk.values.PBegin,org.apache.beam.sdk.values.PCollection<org.bson.Document>>

getDocumentCount

public long getDocumentCount()

populateDisplayData

public void populateDisplayData(org.apache.beam.sdk.transforms.display.DisplayData.Builder builder)

Specified by:

populateDisplayData in interface org.apache.beam.sdk.transforms.display.HasDisplayData

Overrides:

populateDisplayData in class org.apache.beam.sdk.transforms.PTransform<org.apache.beam.sdk.values.PBegin,org.apache.beam.sdk.values.PCollection<org.bson.Document>>