JP.co.Hitachi.soft.jvm.MemoryArea

Class BasicExplicitMemory

java.lang.Object

JP.co.Hitachi.soft.jvm.MemoryArea.MemoryArea

JP.co.Hitachi.soft.jvm.MemoryArea.ExplicitMemory

JP.co.Hitachi.soft.jvm.MemoryArea.BasicExplicitMemory

public class BasicExplicitMemory
extends ExplicitMemory

This is a class that indicates the Explicit memory block. Note that you cannot use this class for other JDK products.

Constructor Summary

Constructors

Constructor and Description
BasicExplicitMemory() Initializes the Explicit memory block.
BasicExplicitMemory(java.lang.String name) Initializes the Explicit memory block, and simultaneously sets up a name for the Explicit memory block.

Method Summary

Modifier and Type	Method and Description
java.lang.String	getName() Returns the name of the Explicit memory block indicated by this object.

Methods inherited from class JP.co.Hitachi.soft.jvm.MemoryArea.ExplicitMemory

countExplicitMemories, freeMemory, getMemoryUsage, isActive, isReclaimed, newArray, newArray, newInstance, newInstance, newInstance, reclaim, reclaim, reclaim, reclaim, setName, toString, totalMemory, usedMemory

Methods inherited from class java.lang.Object

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

Constructor Detail

BasicExplicitMemory

public BasicExplicitMemory()

Initializes the Explicit memory block. Through initialization, the object can be arranged in the Explicit heap. After initializing the Explicit memory block, the instance name is set to BasicExplicitMemory-<Explicit-memory-block-ID>. However, the memory area of the Explicit memory block is not reserved. For the following conditions, disable the Explicit memory block.

• When the option HitachiUseExplicitMemory is OFF (when -XX:+HitachiUseExplicitMemory is not specified)
• When the maximum number of Explicit memory blocks is exceeded

BasicExplicitMemory

public BasicExplicitMemory(java.lang.String name)

Initializes the Explicit memory block, and simultaneously sets up a name for the Explicit memory block. The name of the instance will become the parameter name. However, if the parameter name is null, the instance name will become BasicExplicitMemory-<Explicit-memory-block-ID>. For the following conditions, disable the Explicit memory block.

• When the option HitachiUseExplicitMemory is OFF (when -XX:+HitachiUseExplicitMemory is not specified)
• When the maximum number of Explicit memory blocks is exceeded

Parameters:

name - Specifies the String that indicates the name.

Method Detail

getName

public java.lang.String getName()

Returns the name of the Explicit memory block indicated by this object.

Note:The uniqueness of the Explicit memory block ID that is added to the name set up by default has been assured. However, when the instance that contains this ID is discarded, the same Explicit memory block ID will be reused. In such cases, the different instances that do not coexist have the same default name.

Specified by:

getName in class MemoryArea

Returns:

This method acquires the name of the Explicit memory block indicated by the object from the instance field that indicates the name of the object, and then returns the reference.