QueryExp (Java SE 19 & JDK 19) (original) (raw)

All Superinterfaces:

[Serializable](../../../java.base/java/io/Serializable.html "interface in java.io")

All Known Implementing Classes:

[ObjectName](ObjectName.html "class in javax.management")

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

• Method Summary

boolean
Applies the QueryExp on an MBean.
void
Sets the MBean server on which the query is to be performed.

• Method Details

  • apply

  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](BadStringOperationException.html "class in javax.management") - when an invalid string operation is passed to a method for constructing a query
  [BadBinaryOpValueExpException](BadBinaryOpValueExpException.html "class in javax.management") - when an invalid expression is passed to a method for constructing a query
  [BadAttributeValueExpException](BadAttributeValueExpException.html "class in javax.management") - when an invalid MBean attribute is passed to a query constructing method
  [InvalidApplicationException](InvalidApplicationException.html "class in javax.management") - when an invalid apply is attempted

  • setMBeanServer

  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.