protected TypeElementHandler createElementHandler(TypeMappings typeMappings, QueryTypeFactory queryTypeFactory) {
        return new TypeElementHandler(conf, typeFactory, typeMappings, queryTypeFactory);
    }
{@code AbstractQuerydslProcessor} is the base class for Querydsl annotation processors and
contains the main processing logic. The subclasses just provide the configuration.

@author tiwe
querydsl-apt/src/main/java/com/querydsl/apt/AbstractQuerydslProcessor.java