org.apache.flink.table.client.gateway.local

Class ExecutionContext<ClusterID>

java.lang.Object

org.apache.flink.table.client.gateway.local.ExecutionContext<ClusterID>

Type Parameters:

ClusterID - cluster id

public class ExecutionContext<ClusterID>
extends Object

Context for executing table programs. This class caches everything that can be cached across multiple queries as long as the session context does not change. This must be thread-safe as it might be reused across different query submissions.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ExecutionContext.Builder Builder for ExecutionContext.
static class	ExecutionContext.SessionState Represents the state that should be reused in one session.

Method Summary

Modifier and Type	Method and Description
static ExecutionContext.Builder	builder(Environment defaultEnv, SessionContext sessionContext, List<URL> dependencies, org.apache.flink.configuration.Configuration configuration, org.apache.flink.client.deployment.ClusterClientServiceLoader serviceLoader, org.apache.commons.cli.Options commandLineOptions, List<org.apache.flink.client.cli.CustomCommandLine> commandLines) Returns a builder for this ExecutionContext.
void	close() Close resources associated with this ExecutionContext, e.g.
org.apache.flink.client.deployment.ClusterDescriptor<ClusterID>	createClusterDescriptor()
org.apache.flink.api.dag.Pipeline	createPipeline(String name)
Map<String,org.apache.flink.table.catalog.Catalog>	getCatalogs()
ClassLoader	getClassLoader()
ClusterID	getClusterId()
org.apache.flink.client.deployment.ClusterSpecification	getClusterSpec()
Environment	getEnvironment()
org.apache.flink.api.common.ExecutionConfig	getExecutionConfig()
org.apache.flink.configuration.Configuration	getFlinkConfig()
SessionContext	getOriginalSessionContext() Get the SessionContext when initialize the ExecutionContext.
ExecutionContext.SessionState	getSessionState()
org.apache.flink.table.api.TableEnvironment	getTableEnvironment()
<R> R	wrapClassLoader(java.util.function.Supplier<R> supplier) Executes the given supplier using the execution context's classloader as thread classloader.

Methods inherited from class java.lang.Object

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

Method Detail

getFlinkConfig

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

getOriginalSessionContext

public SessionContext getOriginalSessionContext()

Get the SessionContext when initialize the ExecutionContext. It's usually used when resetting the session properties.

Returns:

the original session context.

getClassLoader

public ClassLoader getClassLoader()

getEnvironment

public Environment getEnvironment()

getClusterSpec

public org.apache.flink.client.deployment.ClusterSpecification getClusterSpec()

getClusterId

public ClusterID getClusterId()

createClusterDescriptor

public org.apache.flink.client.deployment.ClusterDescriptor<ClusterID> createClusterDescriptor()

getCatalogs

public Map<String,org.apache.flink.table.catalog.Catalog> getCatalogs()

getSessionState

public ExecutionContext.SessionState getSessionState()

wrapClassLoader

public <R> R wrapClassLoader(java.util.function.Supplier<R> supplier)

Executes the given supplier using the execution context's classloader as thread classloader.

getTableEnvironment

public org.apache.flink.table.api.TableEnvironment getTableEnvironment()

getExecutionConfig

public org.apache.flink.api.common.ExecutionConfig getExecutionConfig()

createPipeline

public org.apache.flink.api.dag.Pipeline createPipeline(String name)

builder

public static ExecutionContext.Builder builder(Environment defaultEnv,
                                               SessionContext sessionContext,
                                               List<URL> dependencies,
                                               org.apache.flink.configuration.Configuration configuration,
                                               org.apache.flink.client.deployment.ClusterClientServiceLoader serviceLoader,
                                               org.apache.commons.cli.Options commandLineOptions,
                                               List<org.apache.flink.client.cli.CustomCommandLine> commandLines)

Returns a builder for this ExecutionContext.

close

public void close()

Close resources associated with this ExecutionContext, e.g. catalogs.