com.streambase.sb.operator

Interface Operator.ConfigurationAccessor

Enclosing class:

Operator

public static interface Operator.ConfigurationAccessor

Provides access to configuration information for use by operators and adapters, available from the server's configuration file. Usually used in conjunction with a ConfigurationChooserPropertyDescriptor.

Since:

7.5

Method Summary

Modifier and Type	Method and Description
org.w3c.dom.NodeList	getConfigurationBlocksAsXML(java.lang.String xpath) Return all nodes that satisfy the given xpath expression, within the adapter/operator configuration area of the StreamBase Server's configuration file.

Method Detail

getConfigurationBlocksAsXML

org.w3c.dom.NodeList getConfigurationBlocksAsXML(java.lang.String xpath)
                                          throws javax.xml.xpath.XPathExpressionException

Return all nodes that satisfy the given xpath expression, within the adapter/operator configuration area of the StreamBase Server's configuration file. This area is currently defined as the nodes contained within the adapter-configurations element.

Behaviour is undefined if the xpath expression traverses upwards to parent nodes.

Parameters:

xpath - the xpath expression to evaluate

Returns:

a never-null NodeList given the input expression

Throws:

javax.xml.xpath.XPathExpressionException - invalid xpath expression