drools-eclipse/org.guvnor.eclipse.webdav/src/client/org/eclipse/webdav/client/AbstractResourceHandle.java
protected boolean propertyHasChild(QualifiedName propertyName, QualifiedName childName) throws DAVException {
        // If the property is not found, then the answer is 'no'.
        PropertyStatus propertyStat = getProperty(propertyName);
        if (propertyStat.getStatusCode() == IResponse.SC_NOT_FOUND)
            return false;
        // If there was a problem getting the property, throw an exception.
        examineStatusCode(propertyStat.getStatusCode(), propertyStat.getStatusMessage());
        // Check to see if the named child is in the retrieved property.
        try {
            return ElementEditor.hasChild(propertyStat.getProperty(), childName);
        } catch (MalformedElementException exception) {
            throw new SystemException(exception);
        }
    }
protected boolean propertyHasChild(QualifiedName propertyName, QualifiedName childName) throws DAVException {
        // If the property is not found, then the answer is 'no'.
        PropertyStatus propertyStat = getProperty(propertyName);
        if (propertyStat.getStatusCode() == IResponse.SC_NOT_FOUND)
            return false;
        // If there was a problem getting the property, throw an exception.
        examineStatusCode(propertyStat.getStatusCode(), propertyStat.getStatusMessage());
        // Check to see if the named child is in the retrieved property.
        try {
            return ElementEditor.hasChild(propertyStat.getProperty(), childName);
        } catch (MalformedElementException exception) {
            throw new SystemException(exception);
        }
    }
This is a helper method to check to see if the resource has a
property with the given name that in turn has a child with a
given name.

@return <code>true</code> if the resource does have such a
property with a named child and <code>false</code> if it does
not have such a property or does not have such a child of the
property.
@throws DAVException if a problem occurs determining result
from the server.