src/main/java/com/googlecode/objectify/impl/QueryDef.java
public QueryDef andFilter(final Filter addFilter) {
		return filter(this.filter == null ? addFilter : CompositeFilter.and(this.filter, addFilter));
	}
public QueryDef andFilter(final Filter addFilter) {
		return filter(this.filter == null ? addFilter : CompositeFilter.and(this.filter, addFilter));
	}
public QueryDef andFilter ( final Filter addFilter ) { return filter ( this . filter == null ? addFilter : CompositeFilter . and ( this . filter , addFilter ) ) ; }
Convenince method that creates a composite filter with any existing filter (if present)
Convenince method that creates a composite filter with any existing filter ( if present )