svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.dal / org.gvsig.fmap.dal.impl / src / main / java / org / gvsig / fmap / dal / impl / dataprofile / SelectableForeingKey.java @ 44259
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package org.gvsig.fmap.dal.impl.dataprofile; |
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import org.gvsig.expressionevaluator.ExpressionBuilder; |
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import org.gvsig.expressionevaluator.ExpressionUtils; |
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import org.gvsig.fmap.dal.DALLocator; |
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import org.gvsig.fmap.dal.DataManager; |
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import static org.gvsig.fmap.dal.DataManager.DAL_FOREING_CODE; |
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import static org.gvsig.fmap.dal.DataManager.DAL_FOREING_TABLE; |
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import org.gvsig.fmap.dal.feature.AbstractDataProfile; |
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import org.gvsig.fmap.dal.feature.Feature; |
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import org.gvsig.fmap.dal.feature.FeatureQuery; |
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import org.gvsig.fmap.dal.feature.FeatureStore; |
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import org.gvsig.tools.dynobject.Tags; |
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/**
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*
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* @author jjdelcerro
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*/
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@SuppressWarnings("UseSpecificCatch") |
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public class SelectableForeingKey extends AbstractDataProfile { |
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public SelectableForeingKey() {
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super(DataManager.DAL_SELECTABLE_FOREING_KEY, "Selectable foreing key", Feature.class); |
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} |
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@Override
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public Object createData(Object data, Tags tags) { |
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if( data == null ) { |
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return null; |
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} |
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try {
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String foreingTableName = (String) tags.get(DAL_FOREING_TABLE); |
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String foreingCodeName = (String) tags.get(DAL_FOREING_CODE); |
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DataManager dataManager = DALLocator.getDataManager(); |
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FeatureStore store = (FeatureStore) dataManager.getStoresRepository().get(foreingTableName); |
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if( store == null ) { |
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return null; |
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} |
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ExpressionBuilder builder = ExpressionUtils.createExpressionBuilder(); |
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FeatureQuery query = store.createFeatureQuery(); |
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Feature feature = store.findFirst( |
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builder.eq( |
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builder.variable(foreingCodeName), |
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builder.constant(data) |
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).toString() |
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); |
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return feature;
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} catch (Exception ex) { |
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return null; |
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} |
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} |
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public static void selfRegister() { |
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DataManager dataManager = DALLocator.getDataManager(); |
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dataManager.registerDataProfile(new SelectableForeingKey());
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} |
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} |