1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
|
/*
* Copyright (c) 2008-2012, 2014-2017 Eike Stepper (Berlin, Germany) and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Simon McDuff - initial API and implementation
* Eike Stepper - maintenance
*/
package org.eclipse.emf.cdo.internal.common.revision.delta;
import org.eclipse.emf.cdo.common.protocol.CDODataInput;
import org.eclipse.emf.cdo.common.protocol.CDODataOutput;
import org.eclipse.emf.cdo.common.revision.CDOList;
import org.eclipse.emf.cdo.common.revision.CDORevision;
import org.eclipse.emf.cdo.common.revision.delta.CDOFeatureDelta;
import org.eclipse.emf.cdo.common.revision.delta.CDOFeatureDeltaVisitor;
import org.eclipse.emf.cdo.common.revision.delta.CDORemoveFeatureDelta;
import org.eclipse.emf.cdo.spi.common.revision.InternalCDOFeatureDelta.ListIndexAffecting;
import org.eclipse.emf.cdo.spi.common.revision.InternalCDORevision;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.EStructuralFeature;
import java.io.IOException;
/**
* @author Simon McDuff
*/
public class CDORemoveFeatureDeltaImpl extends CDOSingleValueFeatureDeltaImpl implements CDORemoveFeatureDelta, ListIndexAffecting
{
public CDORemoveFeatureDeltaImpl(EStructuralFeature feature, int index)
{
super(feature, index, UNKNOWN_VALUE);
}
public CDORemoveFeatureDeltaImpl(CDODataInput in, EClass eClass) throws IOException
{
super(in, eClass);
}
@Override
protected void writeValue(CDODataOutput out, EClass eClass) throws IOException
{
// Do nothing
}
@Override
protected Object readValue(CDODataInput in, EClass eClass) throws IOException
{
return UNKNOWN_VALUE;
}
public Type getType()
{
return Type.REMOVE;
}
public CDOFeatureDelta copy()
{
CDORemoveFeatureDeltaImpl delta = new CDORemoveFeatureDeltaImpl(getFeature(), getIndex());
delta.setValue(getValue());
return delta;
}
public Object applyTo(CDORevision revision)
{
EStructuralFeature feature = getFeature();
int index = getIndex();
InternalCDORevision internalRevision = (InternalCDORevision)revision;
CDOList list = internalRevision.getList(feature);
return list.remove(index);
}
public void accept(CDOFeatureDeltaVisitor visitor)
{
visitor.visit(this);
}
public void affectIndices(ListTargetAdding sources[], int[] indices)
{
int index = getIndex();
for (int i = 1; i <= indices[0]; i++)
{
if (indices[i] > index)
{
--indices[i];
}
else if (indices[i] == index)
{
int rest = indices[0]-- - i;
if (rest > 0)
{
System.arraycopy(indices, i + 1, indices, i, rest);
System.arraycopy(sources, i + 1, sources, i, rest);
--i;
}
}
}
}
public int projectIndex(int index)
{
if (index >= getIndex())
{
++index;
}
return index;
}
}
|
