jembeanhelper.html

用JAVA编写的,在做实验的时候留下来的,本来想删的,但是传上来,大家分享吧

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<DL>
<DT><B>See Also:</B><DD><A HREF="../../../constant-values.html#org.archive.util.JEMBeanHelper.OP_LOCK_STAT">Constant Field Values</A></DL>
</DL>
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<A NAME="OP_LOCK_STAT_STR"><!-- --></A><H3>
OP_LOCK_STAT_STR</H3>
<PRE>
static final java.lang.String <B>OP_LOCK_STAT_STR</B></PRE>
<DL>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../constant-values.html#org.archive.util.JEMBeanHelper.OP_LOCK_STAT_STR">Constant Field Values</A></DL>
</DL>
<HR>

<A NAME="OP_TXN_STAT"><!-- --></A><H3>
OP_TXN_STAT</H3>
<PRE>
static final java.lang.String <B>OP_TXN_STAT</B></PRE>
<DL>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../constant-values.html#org.archive.util.JEMBeanHelper.OP_TXN_STAT">Constant Field Values</A></DL>
</DL>
<HR>

<A NAME="OP_DB_NAMES"><!-- --></A><H3>
OP_DB_NAMES</H3>
<PRE>
static final java.lang.String <B>OP_DB_NAMES</B></PRE>
<DL>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../constant-values.html#org.archive.util.JEMBeanHelper.OP_DB_NAMES">Constant Field Values</A></DL>
</DL>
<HR>

<A NAME="OP_DB_STAT"><!-- --></A><H3>
OP_DB_STAT</H3>
<PRE>
static final java.lang.String <B>OP_DB_STAT</B></PRE>
<DL>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../constant-values.html#org.archive.util.JEMBeanHelper.OP_DB_STAT">Constant Field Values</A></DL>
</DL>

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<A NAME="JEMBeanHelper(com.sleepycat.je.EnvironmentConfig, java.io.File, boolean)"><!-- --></A><H3>
JEMBeanHelper</H3>
<PRE>
public <B>JEMBeanHelper</B>(com.sleepycat.je.EnvironmentConfig&nbsp;config,
                     java.io.File&nbsp;environmentHome,
                     boolean&nbsp;canConfigure)</PRE>
<DL>
<DD>Instantiate a helper, specifying environment home and open capabilities.
<P>
<DL>
<DT><B>Parameters:</B><DD><CODE>environmentHome</CODE> - home directory of the target JE environment.<DD><CODE>canConfigure</CODE> - If true, the helper will show environment
 configuration attributes.</DL>
</DL>

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<A NAME="getEnvironmentHome()"><!-- --></A><H3>
getEnvironmentHome</H3>
<PRE>
public java.io.File <B>getEnvironmentHome</B>()</PRE>
<DL>
<DD>Return the target environment directory.
<P>
<DD><DL>

<DT><B>Returns:</B><DD>the environment directory.</DL>
</DD>
</DL>
<HR>

<A NAME="getEnvironmentOpenConfig()"><!-- --></A><H3>
getEnvironmentOpenConfig</H3>
<PRE>
public com.sleepycat.je.EnvironmentConfig <B>getEnvironmentOpenConfig</B>()</PRE>
<DL>
<DD>If the helper was instantiated with canConfigure==true, it shows
 environment configuration attributes. Those attributes are returned
 within this EnvironmentConfig object for use in opening environments.
<P>
<DD><DL>

<DT><B>Returns:</B><DD>EnvironmentConfig object which saves configuration attributes
 recorded through MBean attributes.</DL>
</DD>
</DL>
<HR>

<A NAME="getEnvironmentIfOpen()"><!-- --></A><H3>
getEnvironmentIfOpen</H3>
<PRE>
public com.sleepycat.je.Environment <B>getEnvironmentIfOpen</B>()</PRE>
<DL>
<DD>Return an Environment only if the environment has already been opened
 in this process. A helper method for MBeans which want to only access
 open environments.
<P>
<DD><DL>

<DT><B>Returns:</B><DD>Environment if already open, null if not open.</DL>
</DD>
</DL>
<HR>

<A NAME="getNeedReset()"><!-- --></A><H3>
getNeedReset</H3>
<PRE>
public boolean <B>getNeedReset</B>()</PRE>
<DL>
<DD>Tell the MBean if the available set of functionality has changed.
<P>
<DD><DL>

<DT><B>Returns:</B><DD>true if the MBean should regenerate its JE metadata.</DL>
</DD>
</DL>
<HR>

<A NAME="getAttributeList(com.sleepycat.je.Environment)"><!-- --></A><H3>
getAttributeList</H3>
<PRE>
public java.util.List <B>getAttributeList</B>(com.sleepycat.je.Environment&nbsp;targetEnv)</PRE>
<DL>
<DD>Get MBean attribute metadata for this environment.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>targetEnv</CODE> - The target JE environment. May be null if the
 environment is not open.
<DT><B>Returns:</B><DD>list of MBeanAttributeInfo objects describing the available
 attributes.</DL>
</DD>
</DL>
<HR>

<A NAME="getAttribute(com.sleepycat.je.Environment, java.lang.String)"><!-- --></A><H3>
getAttribute</H3>
<PRE>
public java.lang.Object <B>getAttribute</B>(com.sleepycat.je.Environment&nbsp;targetEnv,
                                     java.lang.String&nbsp;attributeName)
                              throws javax.management.AttributeNotFoundException,
                                     javax.management.MBeanException</PRE>
<DL>
<DD>Get an attribute value for the given environment. Check
 JEMBeanHelper.getNeedReset() after this call because the helper may
 detect that the environment has changed and that the MBean metadata
 should be reset.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>targetEnv</CODE> - The target JE environment. May be null if the
 environment is not open.<DD><CODE>attributeName</CODE> - attribute name.
<DT><B>Returns:</B><DD>attribute value.
<DT><B>Throws:</B>
<DD><CODE>javax.management.AttributeNotFoundException</CODE>
<DD><CODE>javax.management.MBeanException</CODE></DL>
</DD>
</DL>
<HR>

<A NAME="setAttribute(com.sleepycat.je.Environment, javax.management.Attribute)"><!-- --></A><H3>
setAttribute</H3>
<PRE>
public void <B>setAttribute</B>(com.sleepycat.je.Environment&nbsp;targetEnv,
                         javax.management.Attribute&nbsp;attribute)
                  throws javax.management.AttributeNotFoundException,
                         javax.management.InvalidAttributeValueException</PRE>
<DL>
<DD>Set an attribute value for the given environment.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>targetEnv</CODE> - The target JE environment. May be null if the
 environment is not open.<DD><CODE>attribute</CODE> - name/value pair
<DT><B>Throws:</B>
<DD><CODE>javax.management.AttributeNotFoundException</CODE>
<DD><CODE>javax.management.InvalidAttributeValueException</CODE></DL>
</DD>
</DL>
<HR>

<A NAME="getOperationList(com.sleepycat.je.Environment)"><!-- --></A><H3>
getOperationList</H3>
<PRE>
public java.util.List <B>getOperationList</B>(com.sleepycat.je.Environment&nbsp;targetEnv)</PRE>
<DL>
<DD>Get mbean operation metadata for this environment.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>targetEnv</CODE> - The target JE environment. May be null if the
 environment is not open.
<DT><B>Returns:</B><DD>List of MBeanOperationInfo describing available operations.</DL>
</DD>
</DL>
<HR>

<A NAME="invoke(com.sleepycat.je.Environment, java.lang.String, java.lang.Object[], java.lang.String[])"><!-- --></A><H3>
invoke</H3>
<PRE>
public java.lang.Object <B>invoke</B>(com.sleepycat.je.Environment&nbsp;targetEnv,
                               java.lang.String&nbsp;actionName,
                               java.lang.Object[]&nbsp;params,
                               java.lang.String[]&nbsp;signature)
                        throws javax.management.MBeanException</PRE>
<DL>
<DD>Invoke an operation for the given environment.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>targetEnv</CODE> - The target JE environment. May be null if the
 environment is not open.<DD><CODE>actionName</CODE> - operation name.<DD><CODE>params</CODE> - operation parameters. May be null.<DD><CODE>signature</CODE> - operation signature. May be null.
<DT><B>Returns:</B><DD>the operation result
<DT><B>Throws:</B>
<DD><CODE>javax.management.MBeanException</CODE></DL>
</DD>
</DL>
<HR>

<A NAME="getNotificationInfo(com.sleepycat.je.Environment)"><!-- --></A><H3>
getNotificationInfo</H3>
<PRE>
public javax.management.MBeanNotificationInfo[] <B>getNotificationInfo</B>(com.sleepycat.je.Environment&nbsp;targetEnv)</PRE>
<DL>
<DD>No notifications are supported.
<P>
<DD><DL>

<DT><B>Returns:</B><DD>List of MBeanNotificationInfo for available notifications.</DL>
</DD>
</DL>
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