org.apache.flink.table.client.gateway.context

Class ExecutionContext

java.lang.Object

org.apache.flink.table.client.gateway.context.ExecutionContext

public class ExecutionContext
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.

Constructor Summary

Constructors

Constructor and Description
ExecutionContext(org.apache.flink.configuration.Configuration flinkConfig, URLClassLoader classLoader, SessionContext.SessionState sessionState)
ExecutionContext(ExecutionContext context) Create a new ExecutionContext.

Method Summary

Modifier and Type	Method and Description
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

Constructor Detail

ExecutionContext

public ExecutionContext(org.apache.flink.configuration.Configuration flinkConfig,
                        URLClassLoader classLoader,
                        SessionContext.SessionState sessionState)

ExecutionContext

public ExecutionContext(ExecutionContext context)

Create a new ExecutionContext.

It just copies from the ExecutionContext and rebuild a new TableEnvironment.

Method Detail

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()