Revision 43358 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/feature/impl/featureset/AbstractFeatureSet.java
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import org.gvsig.tools.visitor.VisitCanceledException; |
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import org.gvsig.tools.visitor.Visitor; |
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import org.gvsig.tools.visitor.impl.AbstractIndexedVisitable; |
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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public abstract class AbstractFeatureSet |
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extends AbstractIndexedVisitable |
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implements FeatureSet {
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protected static final Logger LOG = LoggerFactory.getLogger(AbstractFeatureSet.class); |
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public abstract FeatureStore getFeatureStore(); |
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@Override |
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public final void accept(Visitor visitor, long firstValueIndex, long elements) throws BaseException {
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try {
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doAccept(visitor, firstValueIndex, elements); |
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} catch (VisitCanceledException ex) {
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// The visit has been cancelled by the visitor, so we finish here. |
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LOG.debug( |
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"The visit, beggining on position {}, has been cancelled "
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+ "by the visitor: {}", new Long(firstValueIndex),
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visitor); |
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} |
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} |
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@Override |
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protected void doAccept(Visitor visitor, long firstValueIndex) |
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throws VisitCanceledException, BaseException {
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DisposableIterator iterator = fastIterator(firstValueIndex); |
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if( iterator != null ) {
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try {
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while (iterator.hasNext()) {
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Feature feature = (Feature) iterator.next(); |
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visitor.visit(feature); |
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} |
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} finally {
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DisposeUtils.disposeQuietly(iterator); |
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doAccept(visitor, firstValueIndex, 0); |
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} |
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protected void doAccept(Visitor visitor, long firstValueIndex, long elements) |
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throws VisitCanceledException, BaseException {
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DisposableIterator iterator = fastIterator(firstValueIndex, elements); |
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try {
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while (iterator.hasNext()) {
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Feature feature = (Feature) iterator.next(); |
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visitor.visit(feature); |
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} |
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} finally {
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iterator.dispose(); |
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} |
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} |
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@Override |
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public Feature first() {
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DisposableIterator it = null; |
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