Revision 29289 branches/v2_0_0_prep/libraries/libFMap_dal/src/org/gvsig/fmap/dal/feature/impl/DefaultFeatureIndexes.java

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DefaultFeatureIndexes.java
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import org.gvsig.tools.evaluator.EvaluatorFieldValueMatch;
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import org.gvsig.tools.evaluator.EvaluatorFieldValueNearest;
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import org.gvsig.tools.evaluator.EvaluatorFieldValueRange;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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/**


  		




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 * This class provides access to a FeatureStore local indexes and also decides


  		




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 * @author jyarza


  		




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 */


  		




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public class DefaultFeatureIndexes implements FeatureIndexes {


  		




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	private static final Logger logger = LoggerFactory


  		




  
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			.getLogger(DefaultFeatureIndexes.class);


  		




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	// Access by index name


  		




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	private Map names;


  		




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	// Store to which this belongs


  		




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	 * Using the given evaluator attributes, choose and use an appropriate index


  		




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	 * to obtain a FeatureSet. If no index can be applied, then this method


  		




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	 * returns null


  		




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	 * 


  		




  
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	 *


  		




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	 * @param evaluator


  		




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	 * @return FeatureSet or null if could not find any appropriate index.


  		




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	 * @throws FeatureIndexException


  		




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	 * 


  		




  
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	 *


  		




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	 */


  		




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	public FeatureSet getFeatureSet(Evaluator evaluator)


  		




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			throws FeatureIndexException {


  		




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		// If there is not any any index supporting the function, use the


  		




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		// first one


  		




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		if (!index.isSupported()) {


  		




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			this.store


  		




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					.getLogger()


  		




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					.info(


  		




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							"No index support for the evaluator values. Using default index.");


  		




  
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			logger


  		




  
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					.info("No index support for the evaluator values. Using default index.");


  		




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			index = (ApplyIndex) applyIndexes.get(0);


  		




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		}


  		




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