Boostfactors

<!--
	  - These are factors used by zilverline boost a query. By default a given
	  - query such as 'java "method invocation" rmi' looks for these terms in
	  - the contents of a document. By setting boost factors for other attributes
	  - of a document, such as title, name, and summary you can tune the result of
	  - a query. Normally you start with contents (boostfactor 1.0), and then specify
	  - that you want a occurence of the query terms within the name of a document to 
	  - be twice as important as a hit within the contents, you specify a boostfactor
	  - of 2.0. The example below rates an occurrence of query terms within summary
	  - to be three times as important as within contents, and the title four times.
	  -->
    <bean id="boostFactor" class="org.zilverline.lucene.BoostFactor">
        <property name="factors">
            <props>
                <prop key="contents">1.0</prop>
                <prop key="name">2</prop>
		<prop key="summary">3</prop>
                <prop key="title">4</prop>
            </props>
        </property>
    </bean>