this.map = new CounterMap<Object>();
this.mapSpillOver = context.getConfiguration().getInt(Tokens.FAUNUS_PIPELINE_MAP_SPILL_OVER, Tokens.DEFAULT_MAP_SPILL_OVER);
this.property = context.getConfiguration().get(PROPERTY);
this.isVertex = context.getConfiguration().getClass(CLASS, Element.class, Element.class).equals(Vertex.class);
this.handler = new WritableHandler(context.getConfiguration().getClass(TYPE, Text.class, WritableComparable.class));
this.outputs = new SafeMapperOutputs(context);
}