56 lines
2.3 KiB
Markdown
56 lines
2.3 KiB
Markdown
# 1. Goal
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A fitness chain runs several studios. Each studio sends the attendance list of
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its classes for one day. The head office needs one summary row for each class
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type. The summary shows how many classes took place, how many members attended,
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and the total fee.
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# 2. Open questions
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None.
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# 3. Context
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- All objects are in package $TMP.
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- The class {{P}}STUDIO_SUMMARY does not exist yet.
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- Each studio sends its own list. The caller appends the lists of all studios
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into one table and calls the class once.
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# 4. Contract
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- Create the class {{P}}STUDIO_SUMMARY in package $TMP.
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- The class is public, final, and has a public constructor without parameters.
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- The class defines these public types:
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- ty_attendance: studio (CHAR 4), class_id (CHAR 8), class_type (CHAR 10),
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member_id (CHAR 8), fee (PACKED, length 8, 2 decimals).
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- tt_attendance: a table of ty_attendance.
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- ty_summary: class_type (CHAR 10), class_count (INT4), member_count (INT4),
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total_fee (PACKED, length 8, 2 decimals).
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- tt_summary: a table of ty_summary.
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- The class has this public method:
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summarize
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IMPORTING it_attendance TYPE tt_attendance
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RETURNING VALUE(rt_summary) TYPE tt_summary.
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- Do not add other public methods.
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# 5. Business rules
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1. Use only entries with a class_type that is not empty and a fee greater than
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zero. Ignore all other entries.
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2. If two of the remaining entries have the same studio, class_id and member_id,
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keep only the first of these entries in the input order and ignore the later
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entries.
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3. Group the remaining entries by class_type.
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4. class_count is the number of different combinations of studio and class_id
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in the group.
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5. member_count is the number of different member_id values in the group.
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6. total_fee is the sum of the fee of all entries in the group.
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7. Return one row for each class_type that has at least one entry. Sort the rows
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by class_type in ascending order.
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# 6. Constraints
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- Release target: ABAP Platform 2025 (SAP_BASIS 816).
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- Coding standards: Clean ABAP. Method length below 40 statements. No global
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variables. No comment that restates the code.
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- Out of scope: no database access, no ALV list, no report, no function module.
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# 7. Acceptance
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- The class is active and has no syntax error.
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- The hidden tests pass.
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- Write your own ABAP Unit tests for the class.
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