com.espertech.esper.event.xml
Class SimpleXMLPropertyParser

java.lang.Object
  com.espertech.esper.event.xml.SimpleXMLPropertyParser

public class SimpleXMLPropertyParser
extends java.lang.Object

Parses event property names and transforms to XPath expressions. Supports nested, indexed and mapped event properties.

Constructor Summary

SimpleXMLPropertyParser()

Method Summary

static java.lang.String

walk(EsperEPL2GrammarParser.StartEventPropertyRuleContext ast, java.lang.String propertyName, java.lang.String rootElementName, java.lang.String defaultNamespacePrefix, boolean isResolvePropertiesAbsolute) Return the xPath corresponding to the given property.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SimpleXMLPropertyParser

public SimpleXMLPropertyParser()

Method Detail

walk

public static java.lang.String walk(EsperEPL2GrammarParser.StartEventPropertyRuleContext ast,
                                    java.lang.String propertyName,
                                    java.lang.String rootElementName,
                                    java.lang.String defaultNamespacePrefix,
                                    boolean isResolvePropertiesAbsolute)

Return the xPath corresponding to the given property. The propertyName String may be simple, nested, indexed or mapped.

Parameters:

ast - is the property tree AST

propertyName - is the property name to parse

rootElementName - is the name of the root element for generating the XPath expression

defaultNamespacePrefix - is the prefix of the default namespace

isResolvePropertiesAbsolute - is true to indicate to resolve XPath properties as absolute props or relative props

Returns:

xpath expression