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DataMapper
conceptDesign Pattern
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Overview
Use caseseparating domain objects from database access logic
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Last updatedUpdated 3 days ago
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DataMapper

concept

Data access layer that performs bidirectional transfer of data between persistent data store and in-memory data representation

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featured in

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Patterns of Enterprise Application Architecture○UnverifiedHighFresh1

published year

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2002○UnverifiedHighFresh1

described by

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Martin Fowler○UnverifiedHighFresh1

primary use case

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separating domain objects from database access logic○UnverifiedHighFresh1

used with

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Object-Relational Mapping○UnverifiedHighFresh1

promotes principle

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Separation of Concerns○UnverifiedHighFresh1

pattern type

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Data Source Architectural Pattern○UnverifiedHighFresh1

alternative to

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Active Record Pattern○UnverifiedHighFresh1
Table Data Gateway Pattern○UnverifiedModerateFresh1

implemented by

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Hibernate ORM○UnverifiedHighFresh1
Entity Framework○UnverifiedModerateFresh1
SQLAlchemy○UnverifiedModerateFresh1

supports concept

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Domain Model Pattern○UnverifiedHighFresh1

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Active Record Pattern
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Table Data Gateway Pattern
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Claim count: 13Last updated: 4/27/2026Edit history