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PO
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12164643
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0
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0
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CreationDate
2012-08-28T17:42:41.443
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0
LastActivityDate
2012-08-28T20:30:32.127
LastEditDate
2012-08-28T20:30:32.127
LastEditorUserId
1438570
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1438570
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12160959
PostTypeId
2
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1
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0
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text
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You can, if you wish, incorporate the Abstract Factory pattern to deal with the creation of TaxPolicy objects. In your case that would involve: <code>AbstractTaxPolicyFactory</code> – an interface with abstract methods <code>createItemCategoryTaxPolicy()</code> and <code>createImportDutyTaxPolicy()</code>, that would create abstract tax policies <code>ItemCategoryTaxPolicy</code> and <code>ImportDutyTaxPolicy</code> (these would be your "families of related products") <code>USTaxPolicyFactory</code> and <code>ChinaTaxPolicyFactory</code> – two concrete factories, each implementing those two methods to create concrete tax policies like <code>ChinaImportDutyTaxPolicy</code>, etc. <code>ItemCategoryTaxPolicy</code> and <code>ImportDutyTaxPolicy</code> – interfaces for the respective concrete tax policies <code>USItemCategoryTaxPolicy</code>, <code>USImportDutyTaxPolicy</code>, <code>ChinaItemCategoryTaxPolicy</code>, and <code>ChinaImportDutyTaxPolicy</code> – the four concrete tax policies. For instance, at runtime the <code>USImportDutyTaxPolicy</code> would be created by the <code>USTaxPolicyFactory</code>, and would be of <code>ImportDutyTaxPolicy</code> type. <code>SalesPolicy</code> would be your client that would use the abstract factory and abstract tax policies interfaces, e.g.: <pre><code>AbstractTaxPolicyFactory absFactory = new ChinaTaxPolicyFactory(); // or use a static factory method: // TaxPolicyFactoryCreator.createNewFactory(Country.CHINA); ItemCategoryTaxPolicy itemCatTaxPolicy = absFactory.createItemCategoryTaxPolicy(); addTaxPolicy(itemCatTaxPolicy); ImportDutyTaxPolicy importDutyTaxPolicy = absFactory.createImportDutyTaxPolicy(); addTaxPolicy(importDutyTaxPolicy); </code></pre>
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1. POWhat design pattern can I use for creating objects based on country/state/location for a shopping cart application?
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1. PTAnswer
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1. USk29
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1. USk29
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1. POWhat design pattern can I use for creating objects based on country/state/location for a shopping cart application?
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