Interface QueryExp

All Superinterfaces:
Serializable
All Known Implementing Classes:
ObjectName
public interface QueryExp
extends Serializable

Represents relational constraints similar to database query "where clauses". Instances of QueryExp are returned by the static methods of the Query class.

It is possible, but not recommended, to create custom queries by implementing this interface. In that case, it is better to extend the QueryEval class than to implement the interface directly, so that the setMBeanServer(javax.management.MBeanServer) method works correctly.

Since:
1.5
See Also:
MBeanServer.queryNames

Methods

Modifier and Type Method Description
boolean apply​(ObjectName name)

Applies the QueryExp on an MBean.
void setMBeanServer​(MBeanServer s)

Sets the MBean server on which the query is to be performed.

Methods

apply

boolean apply(ObjectName name)
       throws BadStringOperationException,
              BadBinaryOpValueExpException,
              BadAttributeValueExpException,
              InvalidApplicationException

Applies the QueryExp on an MBean.

Parameters:
name - The name of the MBean on which the QueryExp will be applied.
Returns:
True if the query was successfully applied to the MBean, false otherwise
Throws:
BadStringOperationException - when an invalid string operation is passed to a method for constructing a query
BadBinaryOpValueExpException - when an invalid expression is passed to a method for constructing a query
BadAttributeValueExpException - when an invalid MBean attribute is passed to a query constructing method
InvalidApplicationException - when an invalid apply is attempted

setMBeanServer

void setMBeanServer(MBeanServer s)

Sets the MBean server on which the query is to be performed.

Parameters:
s - The MBean server on which the query is to be performed.

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https://docs.oracle.com/en/java/javase/11/docs/api/java.management/javax/management/QueryExp.html