MaxThreadsConstraintMBean


Overview  |   Related MBeans  |   Attributes  |   Operations

Overview

This MBean defines the max number of concurrent threads that can execute requests sharing this max constraint.

MaxThreadsConstraint can be used to tell the server that the requests are constrained by an external resource like a database and allocating more threads that the external resource limit is not going to help since the extra threads are just going to wait.

       
Since9.0.0.0
Fully Qualified Interface NameIf you use the getMBeanInfo operation in MBeanTypeServiceMBean, supply the following value as this MBean's fully qualified interface name:
weblogic.management.configuration.MaxThreadsConstraintMBean
Factory Methods
Additional Access Points In addition to accessing this MBean by invoking a factory method, you can also access this MBean from the following MBean attributes:
    Access Points Inherited from DeploymentMBean Because this MBean extends or implements DeploymentMBean, you can also access this MBean by retrieving DeploymentMBeans. The following attributes contain DeploymentMBeans and its subtypes:


      Related MBeans

      This section describes attributes that provide access to other MBeans.


        Targets

        You must select a target on which an MBean will be deployed from this list of the targets in the current domain on which this item can be deployed. Targets must be either servers or clusters. The deployment will only occur once if deployments overlap.

               
        Privileges Read/Write
        TypeTargetMBean[]
        Relationship type: Reference.


        Attributes

        This section describes the following attributes:


        CachingDisabled

        Private property that disables caching in proxies.

               
        Privileges Read only
        Typeboolean
        Redeploy or Restart required Changes take effect after you redeploy the module or restart the server.

        ConnectionPoolName

        Name of the connection pool whose size is taken as the max constraint.

        This can be the name of a JDBC data source. The max capacity of the data source is used as the constraint.

               
        Privileges Read/Write
        Typejava.lang.String

        Count

        Maximum number of concurrent threads that can execute requests sharing this constraint.

        A count of 0 or -1 is treated as if the constraint is not present. This means that no constraint is enforced for these two values. A count > 0 can be dynamically changed to 0 to indicate that constraint enforcement is no longer needed.

               
        Available Since Release 9.0.0.0
        Privileges Read/Write
        Typeint
        Default Value-1

        DeploymentOrder

        A priority that the server uses to determine when it deploys an item. The priority is relative to other deployable items of the same type.

        For example, the server prioritizes and deploys all EJBs before it prioritizes and deploys startup classes.

        Items with the lowest Deployment Order value are deployed first. There is no guarantee on the order of deployments with equal Deployment Order values. There is no guarantee of ordering across clusters.

               
        Privileges Read/Write
        Typeint
        Default Value1000
        Minimum value0
        Maximum value2147483647

        MBeanInfo

        Returns the MBean info for this MBean.

        Deprecated.

               
        Privileges Read only
        Typejavax.management.MBeanInfo
        Redeploy or Restart required Changes take effect after you redeploy the module or restart the server.

        Name

        The user-specified name of this MBean instance.

        This name is included as one of the key properties in the MBean's javax.management.ObjectName:
        Name=user-specified-name

               
        Privileges Read/Write
        Typejava.lang.String

        Notes

        Optional information that you can include to describe this configuration.

        WebLogic Sever saves this note in the domain's configuration file (config.xml) as XML PCDATA. All left angle brackets (<) are converted to the XML entity &lt;. Carriage returns/line feeds are preserved.

        Note:

        If you create or edit a note from the Administration Console, the Administration Console does not preserve carriage returns/line feeds.

               
        Privileges Read/Write
        Typejava.lang.String

        ObjectName

        Returns the ObjectName under which this MBean is registered in the MBean server.

        Deprecated.

               
        Privileges Read only
        Typeweblogic.management.WebLogicObjectName
        Redeploy or Restart required Changes take effect after you redeploy the module or restart the server.

        Parent

        Return the immediate parent for this MBean

               
        Privileges Read/Write
        Type

        Registered

        Returns false if the the MBean represented by this object has been unregistered.

        Deprecated.

               
        Privileges Read only
        Typeboolean
        Redeploy or Restart required Changes take effect after you redeploy the module or restart the server.

        Type

        Returns the type of the MBean.

               
        Privileges Read only
        Typejava.lang.String
        Redeploy or Restart required Changes take effect after you redeploy the module or restart the server.


        Operations

        This section describes the following operations:


        addTarget

        You can add a target to specify additional servers on which the deployment can be deployed. The targets must be either clusters or servers.

           
        Operation Name"addTarget"
        ParametersObject [] {  target }

        where:

        • target is an object of type weblogic.management.configuration.TargetMBean that specifies:

          The feature to be added to the Target attribute

        SignatureString [] { "weblogic.management.configuration.TargetMBean" }
        Returns boolean
        Exceptions
        • javax.management.InvalidAttributeValueException
        • weblogic.management.DistributedManagementException

        freezeCurrentValue

        If the specified attribute has not been set explicitly, and if the attribute has a default value, this operation forces the MBean to persist the default value.

        Unless you use this operation, the default value is not saved and is subject to change if you update to a newer release of WebLogic Server. Invoking this operation isolates this MBean from the effects of such changes.

        Note:

        To insure that you are freezing the default value, invoke the restoreDefaultValue operation before you invoke this.

        This operation has no effect if you invoke it on an attribute that does not provide a default value or on an attribute for which some other value has been set.

        Deprecated. 9.0.0.0

           
        Operation Name"freezeCurrentValue"
        ParametersObject [] {  attributeName }

        where:

        • attributeName is an object of type java.lang.String that specifies:

          attributeName

        SignatureString [] { "java.lang.String" }
        Returns void
        Exceptions
        • javax.management.AttributeNotFoundException
        • javax.management.MBeanException

        isSet

        Returns true if the specified attribute has been set explicitly in this MBean instance.

           
        Operation Name"isSet"
        ParametersObject [] {  propertyName }

        where:

        • propertyName is an object of type java.lang.String that specifies:

          property to check

        SignatureString [] { "java.lang.String" }
        Returns boolean

        removeTarget

        Removes the value of the addTarget attribute.

        For more information, see:

           
        Operation Name"removeTarget"
        ParametersObject [] {  target }

        where:

        • target is an object of type weblogic.management.configuration.TargetMBean that specifies:

          target

        SignatureString [] { "weblogic.management.configuration.TargetMBean" }
        Returns boolean
        Exceptions
        • javax.management.InvalidAttributeValueException
        • weblogic.management.DistributedManagementException

        restoreDefaultValue

        If the specified attribute has a default value, this operation removes any value that has been set explicitly and causes the attribute to use the default value.

        Default values are subject to change if you update to a newer release of WebLogic Server. To prevent the value from changing if you update to a newer release, invoke the freezeCurrentValue operation.

        This operation has no effect if you invoke it on an attribute that does not provide a default value or on an attribute that is already using the default.

        Deprecated. 9.0.0.0

           
        Operation Name"restoreDefaultValue"
        ParametersObject [] {  attributeName }

        where:

        • attributeName is an object of type java.lang.String that specifies:

          attributeName

        SignatureString [] { "java.lang.String" }
        Returns void
        Exceptions
        • javax.management.AttributeNotFoundException

        unSet

        Restore the given property to its default value.

           
        Operation Name"unSet"
        ParametersObject [] {  propertyName }

        where:

        • propertyName is an object of type java.lang.String that specifies:

          property to restore

        SignatureString [] { "java.lang.String" }
        Returns void