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 Architectural benefits

Spring can effectively organize your middle tier obects! "hether or not you choose to use #$%.

Spring ta&es care of plumbing that "ould be left up to you if you use only Struts or other frame"or&s

geared to particular $'## APIs.

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 And "hile it is perhaps most valuable in the middle tier! Spring(s configuration management services

can be used in any architectural layer! in "hatever runtime environment.

Spring can eliminate the proliferation of Singletons seen on many proects. In my experience! this is

a maor problem! reducing testability and obect orientation.

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 Architectural benefits

Spring can eliminate the need to use a variety of custom properties file formats! by handling

configuration in a consistent "ay throughout applications and proects.

#ver "ondered "hat magic property &eys or system properties a particular class loo&s for! and had

to read the$avadocor even source code)

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 Architectural benefits

*ith Spring you simply loo& at the class(s $ava%ean properties or constructor arguments. The use of

Inversion of +ontrol and ,ependency Inection -discussed belo" helps achieve this simplification.

Spring can facilitate good programming practice by reducing the cost of programming to interfaces!

rather than classes! almost to zero.

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 Architectural benefits

Spring is designed so that applications built "ith it depend on as fe" of its APIs as possible. /ost

business obects in Spring applications have no dependency on Spring.

 Applications built using Spring are very easy to unit test.

Spring can ma&e the use of #$% an implementation choice! rather than the determinant of

application architecture. 0ou can choose to implement business interfaces asP1$1sor

local#$%s"ithout affecting calling code.

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 Architectural benefits

Spring helps you solve many problems "ithout using #$%. Spring can provide an alternative to #$%

that(s appropriate for many applications.

2or example! Spring can use A1P to deliver declarative transaction management "ithout using an

#$% container3 even "ithout a $TA implementation! if you only need to "or& "ith a single database.

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 Architectural benefits

Spring provides a consistent frame"or& for data access! "hether using $,%+ or an 14/ product

such asTopLin&! 5ibernate or a $,1 implementation.

Spring provides a consistent! simple programming model in many areas! ma&ing it an ideal

architectural 6glue.6 0ou can see this consistency in the Spring approach to $,%+! $/S!$ava/ail!

$7,I and many other important APIs.

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