Package org.apache.flink.table.api

Class EnvironmentSettings

java.lang.Object

org.apache.flink.table.api.EnvironmentSettings

@PublicEvolving
public class EnvironmentSettings
extends Object

Defines all parameters that initialize a table environment. Those parameters are used only during instantiation of a TableEnvironment and cannot be changed afterwards.

Example:

 EnvironmentSettings.newInstance()
   .inStreamingMode()
   .withBuiltInCatalogName("default_catalog")
   .withBuiltInDatabaseName("default_database")
   .build()
 

inStreamingMode() or inBatchMode() might be convenient as shortcuts.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	EnvironmentSettings.Builder	A builder for EnvironmentSettings.

Method Summary

Modifier and Type	Method	Description
String	getBuiltInCatalogName()	Gets the specified name of the initial catalog to be created when instantiating a TableEnvironment.
String	getBuiltInDatabaseName()	Gets the specified name of the default database in the initial catalog to be created when instantiating a TableEnvironment.
org.apache.flink.table.catalog.CatalogStore	getCatalogStore()
org.apache.flink.configuration.Configuration	getConfiguration()	Get the underlying Configuration.
ClassLoader	getUserClassLoader()	Returns the user ClassLoader to use for code generation, UDF loading and other operations requiring reflections on user code.
static EnvironmentSettings	inBatchMode()	Creates a default instance of EnvironmentSettings in batch execution mode.
static EnvironmentSettings	inStreamingMode()	Creates a default instance of EnvironmentSettings in streaming execution mode.
boolean	isStreamingMode()	Tells if the TableEnvironment should work in a batch or streaming mode.
static EnvironmentSettings.Builder	newInstance()	Creates a builder for creating an instance of EnvironmentSettings.

Methods inherited from class java.lang.Object

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

Method Detail

inStreamingMode

public static EnvironmentSettings inStreamingMode()

Creates a default instance of EnvironmentSettings in streaming execution mode.

In this mode, both bounded and unbounded data streams can be processed.

This method is a shortcut for creating a TableEnvironment with little code. Use the builder provided in newInstance() for advanced settings.

inBatchMode

public static EnvironmentSettings inBatchMode()

Creates a default instance of EnvironmentSettings in batch execution mode.

This mode is highly optimized for batch scenarios. Only bounded data streams can be processed in this mode.

This method is a shortcut for creating a TableEnvironment with little code. Use the builder provided in newInstance() for advanced settings.

newInstance

public static EnvironmentSettings.Builder newInstance()

Creates a builder for creating an instance of EnvironmentSettings.

getConfiguration

public org.apache.flink.configuration.Configuration getConfiguration()

Get the underlying Configuration.

getBuiltInCatalogName

public String getBuiltInCatalogName()

Gets the specified name of the initial catalog to be created when instantiating a TableEnvironment.

getBuiltInDatabaseName

public String getBuiltInDatabaseName()

Gets the specified name of the default database in the initial catalog to be created when instantiating a TableEnvironment.

isStreamingMode

public boolean isStreamingMode()

Tells if the TableEnvironment should work in a batch or streaming mode.

getUserClassLoader

@Internal
public ClassLoader getUserClassLoader()

Returns the user ClassLoader to use for code generation, UDF loading and other operations requiring reflections on user code.

getCatalogStore

@Internal
@Nullable
public org.apache.flink.table.catalog.CatalogStore getCatalogStore()