com.couchbase.lite

Interface Reducer

public interface Reducer

Block container for the reduce callback function

Method Summary

Modifier and Type	Method and Description
java.lang.Object	reduce(java.util.List<java.lang.Object> keys, java.util.List<java.lang.Object> values, boolean rereduce) A "reduce" function called to summarize the results of a view.

Method Detail

reduce

java.lang.Object reduce(java.util.List<java.lang.Object> keys,
                        java.util.List<java.lang.Object> values,
                        boolean rereduce)

A "reduce" function called to summarize the results of a view.

Parameters:

keys - An array of keys to be reduced (or null if this is a rereduce).

values - A parallel array of values to be reduced, corresponding 1::1 with the keys.

rereduce - true if the input values are the results of previous reductions.

Returns:

The reduced value; almost always a scalar or small fixed-size object.