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methods that return lists should return unmodifiable lists; use foreach sheet iterator when sheet index is not needed

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git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1747843 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Javen O'Neal 2016-06-11 03:05:31 +00:00
parent ed3364b6d2
commit 8673812492
1 changed files with 8 additions and 7 deletions
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15
src/java/org/apache/poi/hssf/usermodel/HSSFWorkbook.java
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@ -38,6 +38,7 @@ import java.util.List;
import java.util.Map;
import java.util.NoSuchElementException;
import java.util.regex.Pattern;
import java.util.Collections;
import org.apache.commons.codec.digest.DigestUtils;
import org.apache.poi.EncryptedDocumentException;
@ -1475,7 +1476,7 @@ public final class HSSFWorkbook extends POIDocument implements org.apache.poi.ss
}
}
return nameList;
return Collections.unmodifiableList(nameList);
}
@Override
@ -1721,8 +1722,8 @@ public final class HSSFWorkbook extends POIDocument implements org.apache.poi.ss
void initDrawings(){
DrawingManager2 mgr = workbook.findDrawingGroup();
if(mgr != null) {
for(int i=0; i < getNumberOfSheets(); i++) {
getSheetAt(i).getDrawingPatriarch();
for(HSSFSheet sh : _sheets) {
sh.getDrawingPatriarch();
}
} else {
workbook.createDrawingGroup();
@ -1840,7 +1841,7 @@ public final class HSSFWorkbook extends POIDocument implements org.apache.poi.ss
searchForPictures(escherRecords, pictures);
}
}
return pictures;
return Collections.unmodifiableList(pictures);
}
/**
@ -1976,11 +1977,11 @@ public final class HSSFWorkbook extends POIDocument implements org.apache.poi.ss
public List<HSSFObjectData> getAllEmbeddedObjects()
{
List<HSSFObjectData> objects = new ArrayList<HSSFObjectData>();
for (int i = 0; i < getNumberOfSheets(); i++)
for (HSSFSheet sheet : _sheets)
{
getAllEmbeddedObjects(getSheetAt(i), objects);
getAllEmbeddedObjects(sheet, objects);
}
return objects;
return Collections.unmodifiableList(objects);
}
/**