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125781 rmunteanu: Merged 5.1.N (5.1.2) to 5.2.N (5.2.1)
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git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@127808 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
34 lines
1.2 KiB
Java
34 lines
1.2 KiB
Java
package org.alfresco.repo.batch;
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import java.util.Collection;
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/**
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* An interface that provides work loads to the {@link BatchProcessor}.
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*
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* @author Derek Hulley
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* @since 3.4
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*/
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public interface BatchProcessWorkProvider<T>
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{
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/**
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* Get an estimate of the total number of objects that will be provided by this instance.
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* Instances can provide accurate answers on each call, but only if the answer can be
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* provided quickly and efficiently; usually it is enough to to cache the result after
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* providing an initial estimate.
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*
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* @return a total work size estimate
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*/
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int getTotalEstimatedWorkSize();
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/**
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* Get the next lot of work for the batch processor. Implementations should return
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* the largest number of entries possible; the {@link BatchProcessor} will keep calling
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* this method until it has enough work for the individual worker threads to process
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* or until the work load is empty.
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*
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* @return the next set of work object to process or an empty collection
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* if there is no more work remaining.
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*/
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Collection<T> getNextWork();
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}
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