root / branches / v2_0_0_prep / libraries / libFMap_dal / src / org / gvsig / fmap / dal / feature / impl / featureset / EditedIterator.java @ 33205
History | View | Annotate | Download (2.83 KB)
1 |
package org.gvsig.fmap.dal.feature.impl.featureset; |
---|---|
2 |
|
3 |
import java.util.Iterator; |
4 |
|
5 |
import org.gvsig.fmap.dal.exception.DataException; |
6 |
import org.gvsig.tools.dispose.DisposableIterator; |
7 |
import org.gvsig.fmap.dal.feature.FeatureReference; |
8 |
import org.gvsig.fmap.dal.feature.impl.DefaultFeature; |
9 |
import org.gvsig.fmap.dal.feature.impl.DefaultFeatureReference; |
10 |
import org.gvsig.fmap.dal.feature.spi.FeatureProvider; |
11 |
import org.gvsig.tools.exception.BaseException; |
12 |
|
13 |
public class EditedIterator extends FilteredIterator { |
14 |
|
15 |
Iterator newsFeatures;
|
16 |
boolean featureIsNew;
|
17 |
|
18 |
|
19 |
public EditedIterator(DefaultFeatureSet featureSet) {
|
20 |
super(featureSet);
|
21 |
} |
22 |
|
23 |
public EditedIterator(DefaultFeatureSet featureSet, long index) |
24 |
throws DataException {
|
25 |
super(featureSet);
|
26 |
this.newsFeatures = null; |
27 |
if (index > 0) { |
28 |
if (featureSet.provider.canIterateFromIndex()) {
|
29 |
try {
|
30 |
this.iterator = featureSet.provider.iterator(index);
|
31 |
} catch (IllegalArgumentException e) { |
32 |
this.iterator = featureSet.provider.iterator();
|
33 |
skypto(index); |
34 |
} catch (UnsupportedOperationException e) { |
35 |
this.iterator = featureSet.provider.iterator();
|
36 |
skypto(index); |
37 |
} |
38 |
} else {
|
39 |
this.iterator = featureSet.provider.iterator();
|
40 |
skypto(index); |
41 |
} |
42 |
} else {
|
43 |
this.iterator = featureSet.provider.iterator();
|
44 |
} |
45 |
|
46 |
} |
47 |
|
48 |
protected Iterator getIterator() { |
49 |
if (this.featureIsNew){ |
50 |
return this.newsFeatures; |
51 |
} else if (this.iterator.hasNext()) { |
52 |
featureIsNew=false;
|
53 |
return this.iterator; |
54 |
} else{
|
55 |
featureIsNew = true;
|
56 |
this.newsFeatures = this.fset.store.getFeatureManager() |
57 |
.getInserted(); |
58 |
return this.newsFeatures; |
59 |
} |
60 |
} |
61 |
|
62 |
protected DefaultFeature createFeature(FeatureProvider data) {
|
63 |
|
64 |
DefaultFeature f = null;
|
65 |
data.setNew(featureIsNew); |
66 |
try {
|
67 |
FeatureReference ref = new DefaultFeatureReference(fset.store, data);
|
68 |
f = (DefaultFeature) fset.store.getFeatureManager().get(ref, |
69 |
fset.store, data.getType()); |
70 |
} catch (DataException e) {
|
71 |
RuntimeException ex = new RuntimeException(); |
72 |
e.initCause(e); |
73 |
throw ex;
|
74 |
} |
75 |
if (f == null) { |
76 |
// La feature no se ha editado.
|
77 |
f = new DefaultFeature(fset.store, data);
|
78 |
} |
79 |
return f;
|
80 |
} |
81 |
|
82 |
protected boolean isDeletedOrHasToSkip(FeatureProvider data) { |
83 |
|
84 |
// XXX
|
85 |
// si recorriendo los originales nos
|
86 |
// encontramos uno nuevo, no lo devolvemos
|
87 |
// porque se recorrera mas tarde.
|
88 |
// Esto es una interaccion con los indices
|
89 |
// ya que estos contienen todas las features ya
|
90 |
// sea nuevas o no
|
91 |
|
92 |
if (data.isNew() && !featureIsNew) {
|
93 |
return true; |
94 |
} |
95 |
FeatureReference ref = new DefaultFeatureReference(fset.store, data);
|
96 |
return fset.store.getFeatureManager().isDeleted(ref);
|
97 |
} |
98 |
|
99 |
protected void doDispose() throws BaseException { |
100 |
super.doDispose();
|
101 |
if (newsFeatures instanceof DisposableIterator) { |
102 |
((DisposableIterator) newsFeatures).dispose(); |
103 |
} |
104 |
newsFeatures = null;
|
105 |
} |
106 |
|
107 |
|
108 |
} |