.. index:: Core Operations
.. _core-operations:

Core Operations
===============

These are the core operations Graphene supports out-of-the-box as templates.

These are small operations that apply a function to a series of input
ledgers to produce a transformed output ledger. They are the building blocks
for financial modelling in Graphene.

.. toctree::
   :maxdepth: 1

   AggregateAttachment <aggregate_attachment>
   AggregateLimit <aggregate_limit>
   InnerJoin <inner_join>
   LargestOccurrenceFilter <largest_occurrence_filter>
   LookupFactor <lookup_factor>
   MetadataFilter <metadata_filter>
   OccurrenceAttachment <occurrence_attachment>
   OccurrenceFranchiseDeductible <occurrence_franchise_deductible>
   OccurrenceLimit <occurrence_limit>
   OffsetTime <offset_time>
   PreferentialAttachment <preferential_attachment>
   Projection <projection>
   Record <record>
   RecordTypeFilter <record_type_filter>
   RecordTypePrefixFilter <record_type_prefix_filter>
   Scale <scale>
   ScopedAttachment <scoped_attachment>
   ScopedLimit <scoped_limit>
   SetRecordType <set_record_type>
   TimeFilter <time_filter>
   TimePeriodProportion <time_period_proportion>
   Trigger <trigger>