summaryContext.output
|
Property Description |
Iterator that provides keys and values that are saved as output during the reduce stage. Note that keys are listed in lexicographical order. |
|
Type |
iterator |
|
Since |
2015.2 |
Members
|
Member |
Type |
Required/Optional |
Description |
|---|---|---|---|
|
iterator().each(parameters) |
function |
required |
Executes one time for each key-value pair. |
parameters
|
Member |
Type |
Required/Optional |
Description |
|---|---|---|---|
|
iteratorFunction(key, value). See functionParameters. |
function |
required |
Provides logic to be executed during each iteration. |
functionParameters
|
Parameter |
Type |
Required/Optional |
Description |
|---|---|---|---|
|
key |
string |
optional |
The key saved at the end of the reduce stage by using the reduceContext.write(options) method. |
|
value |
string |
optional |
The value saved at the end of the reduce stage by using the reduceContext.write(options) method. |
Syntax
// Add additional code
...
// Create a variable to track how many key-value pairs were written.
var totalRecordsUpdated = 0;
// If the number of key-value pairs is expected to be manageable, log
// each one.
summary.output.iterator().each(function (key, value){
log.audit({
title: ' summary.output.iterator',
details: 'key: ' + key + ' / value: ' + value
});
totalRecordsUpdated++;
return true;
});
// Create a log entry showing the number of
log.debug({
title: 'Total records updated',
details: totalRecordsUpdated
});
...
// Add additional code.