pro.fessional.mirana.text

Class BuilderHolder

java.lang.Object

pro.fessional.mirana.evil.ThreadLocalSoft<StringBuilder>

pro.fessional.mirana.text.BuilderHolder

All Implemented Interfaces:

Closeable, AutoCloseable

public class BuilderHolder
extends ThreadLocalSoft<StringBuilder>

 Using ThreadLocal internally, there are leak pitfalls, you must use one of the following modes.
 (1) static, the only Ref in JVM, to avoid creating temporary Ref multiple times.
 (2) use try-finally-close mode to remove the Ref.
 

Since:

2021-03-24

Author:

trydofor

Constructor Summary

Constructors

Constructor and Description
BuilderHolder()
BuilderHolder(int min, int max) init holder, cache the builder only if its less than the max size
BuilderHolder(int min, int max, ThreadLocal<SoftReference<StringBuilder>> threadLocal)

Method Summary

Modifier and Type	Method and Description
boolean	anewValue(@NotNull StringBuilder bd) Reset to current value in a single thread and decide whether it is available
@NotNull StringBuilder	initValue() Init in a single thread, first time or anewValue() call

Methods inherited from class pro.fessional.mirana.evil.ThreadLocalSoft

close, use

Methods inherited from class java.lang.Object

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

Constructor Detail

BuilderHolder

public BuilderHolder()
              throws ThreadLocalAttention

Throws:

ThreadLocalAttention

BuilderHolder

public BuilderHolder(int min,
                     int max)
              throws ThreadLocalAttention

init holder, cache the builder only if its less than the max size

Parameters:

min - init size

max - max size

Throws:

ThreadLocalAttention

BuilderHolder

public BuilderHolder(int min,
                     int max,
                     ThreadLocal<SoftReference<StringBuilder>> threadLocal)
              throws ThreadLocalAttention

Throws:

ThreadLocalAttention

Method Detail

initValue

@NotNull
public @NotNull StringBuilder initValue()

Description copied from class: ThreadLocalSoft

Init in a single thread, first time or anewValue() call

Specified by:

initValue in class ThreadLocalSoft<StringBuilder>

anewValue

public boolean anewValue(@NotNull
                         @NotNull StringBuilder bd)

Description copied from class: ThreadLocalSoft

Reset to current value in a single thread and decide whether it is available

Overrides:

anewValue in class ThreadLocalSoft<StringBuilder>

Parameters:

bd - current value

Returns:

whether to initValue again.