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<title>Spring 3 Object Mapping</title>
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<title>Spring 3 Object Mapping</title>
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<para>
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<para>
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There are scenarios, particularly in large message-oriented business applications, where data and object transformation is required.
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There are scenarios, particularly in large message-oriented business applications, where data and object transformation is required.
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For example, consider a complex Web Service where there a separation exists between the data exchange model and the internal domain model used to structure business logic.
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For example, consider a complex Web Service where there is a separation between the data exchange model and the internal domain model used to structure business logic.
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In cases like this, a general-purpose data mapping facility can be useful for automating the mapping between these disparate models.
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In cases like this, a general-purpose data mapping facility can be useful for automating the mapping between these disparate models.
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Spring 3 introduces such a facility built on the <link linkend="expressions-intro">Spring Expression Language</link> (SpEl).
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Spring 3 introduces such a facility built on the <link linkend="expressions-intro">Spring Expression Language</link> (SpEl).
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This facility is described in this section.
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This facility is described in this section.
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