Revision 29326 branches/v2_0_0_prep/libraries/libFMap_dal/src/org/gvsig/fmap/dal/feature/spi/memory/MemoryFeatureSet.java
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package org.gvsig.fmap.dal.feature.spi.memory; |
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import java.util.Iterator; |
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import java.util.List; |
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import org.gvsig.fmap.dal.exception.DataException; |
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import org.gvsig.fmap.dal.feature.DisposableIterator; |
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import org.gvsig.fmap.dal.feature.FeatureQuery; |
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import org.gvsig.fmap.dal.feature.FeatureType; |
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import org.gvsig.fmap.dal.feature.spi.DefaultFeatureProvider; |
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import org.gvsig.fmap.dal.feature.spi.FeatureSetProvider; |
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public class MemoryFeatureSet implements FeatureSetProvider {
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AbstractMemoryStoreProvider store; |
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FeatureType type; |
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protected List data; |
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public MemoryFeatureSet(AbstractMemoryStoreProvider store, |
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FeatureQuery query, FeatureType featureType) {
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FeatureQuery query, FeatureType featureType, List data) {
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this.store = store; |
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this.data = data; |
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/* |
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* Nota: Como no sabe filtrar ni ordenar ignora el query. |
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*/ |
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} |
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public long getSize() throws DataException {
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return store.getDataSize();
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return data.size();
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} |
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public boolean isEmpty() throws DataException {
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return store.getDataSize() < 1;
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return data.size() < 1;
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} |
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public DisposableIterator iterator() throws DataException {
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if (type == null) {
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return store.dataIterator();
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return new DelegatedDisposableIterator(this.data.iterator());
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} |
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return store.dataIterator(type);
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return new DelegatedDisposableIterator(this.data.iterator(), type);
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} |
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public DisposableIterator iterator(long index) throws DataException {
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if (type == null) {
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return store.dataIterator(index); |
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return new DelegatedDisposableIterator(this.data |
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.listIterator((int) index)); |
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} |
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return store.dataIterator(index, type); |
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return new DelegatedDisposableIterator(this.data |
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.listIterator((int) index), type); |
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} |
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public void dispose() {
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store = null; |
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} |
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protected class DelegatedDisposableIterator implements DisposableIterator {
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private Iterator delegated; |
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private FeatureType fType; |
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public DelegatedDisposableIterator(Iterator it) {
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this(it, null); |
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} |
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public DelegatedDisposableIterator(Iterator it, FeatureType featureType) {
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this.delegated = it; |
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this.fType = featureType; |
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} |
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public void dispose() {
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this.delegated = null; |
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} |
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public boolean hasNext() {
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return delegated.hasNext(); |
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} |
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public Object next() {
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if (fType == null) {
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return delegated.next(); |
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} else {
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return new MemoryFeatureProviderAttributeMapper( |
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(DefaultFeatureProvider) delegated.next(), |
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this.fType); |
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} |
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} |
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public void remove() {
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throw new UnsupportedOperationException(); |
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} |
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} |
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} |
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