org.apache.cassandra.utils

Interface WithResources

All Known Implementing Classes:

ExecutorLocals, WithResources.None

public interface WithResources

A generic interface for encapsulating a Runnable task with related work before and after execution, using the built-in try-with-resources functionality offered by Closeable. See ExecutorPlus.execute(WithResources, Runnable)

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	WithResources.None

Method Summary

Modifier and Type	Method and Description
default WithResources	and(WithResources withResources)
static WithResources	and(WithResources first, WithResources second)
Closeable	get() Instantiate any necessary resources
default boolean	isNoOp() A convenience method to avoid unnecessary work.
static WithResources	none()

Method Detail

get

Closeable get()

Instantiate any necessary resources

Returns:

an object that closes any instantiated resources

isNoOp

default boolean isNoOp()

A convenience method to avoid unnecessary work.

Returns:

true iff this object performs no work when get() is invoked, nor when Closeable.close() is invoked on the object it returns.

and

default WithResources and(WithResources withResources)

none

static WithResources none()

and

static WithResources and(WithResources first,
                         WithResources second)