public GearsBuilder<T> filter​(
    gears.operations.FilterOperation<T> filter)

Filters out records in the pipe based on a given condition.

The filter operation should contain a conditional statement and return a boolean for each record:

  • If true, the record will continue through the pipe.
  • If false, it filters out the record.

Parameters

NameTypeDescription
filterFilterOperationA function that checks a condition for each record in the pipe. Returns a boolean.

Returns

Returns a GearsBuilder object with the same template type as the input builder.

Example

Get all records that contain the substring “person:”:

GearsBuilder.CreateGearsBuilder(reader).
    filter(r->{
        return r.getKey().contains("person:");
});