44 lines
1.2 KiB
Java
44 lines
1.2 KiB
Java
package li.strolch.bookshop.service;
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import li.strolch.bookshop.BookShopConstants;
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import li.strolch.model.Resource;
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import li.strolch.persistence.api.StrolchTransaction;
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import li.strolch.service.StringServiceArgument;
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import li.strolch.service.api.AbstractService;
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import li.strolch.service.api.ServiceResult;
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public class RemoveBookService extends AbstractService<StringServiceArgument, ServiceResult> {
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private static final long serialVersionUID = 1L;
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@Override
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protected ServiceResult getResultInstance() {
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return new ServiceResult();
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}
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@Override
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public StringServiceArgument getArgumentInstance() {
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return new StringServiceArgument();
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}
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@Override
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protected ServiceResult internalDoService(StringServiceArgument arg) throws Exception {
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// open a new transaction, using the realm from the argument, or the certificate
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try (StrolchTransaction tx = openArgOrUserTx(arg)) {
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// get the existing book
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Resource book = tx.getResourceBy(BookShopConstants.TYPE_BOOK, arg.value, true);
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// save changes
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tx.remove(book);
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// notify the TX that it should commit on close
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tx.commitOnClose();
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}
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// and return the result
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return ServiceResult.success();
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}
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}
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