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// Copyright 2007 The Android Open Source Project
package com.google.wireless.gdata.spreadsheets.data;
import com.google.wireless.gdata.data.Entry;
import com.google.wireless.gdata.data.StringUtils;
import java.util.Enumeration;
import java.util.Hashtable;
import java.util.Vector;
/**
* Represents an entry in a GData Spreadsheets List feed.
*/
public class ListEntry extends Entry {
/** Map containing the values in the row. */
private Hashtable values = new Hashtable();
/** Caches the list of names, so they don't need to be recomputed. */
private Vector names = null;
/**
* Retrieves the column names present in this row.
*
* @return a Set of Strings, one per column where data exists
*/
public Vector getNames() {
if (names != null) {
return names;
}
names = new Vector();
Enumeration e = values.keys();
while (e.hasMoreElements()) {
names.add(e.nextElement());
}
return names;
}
/**
* Fetches the value for a column. Equivalent to
* <code>getValue(name, null)</code>.
*
* @param name the name of the column whose row is to be fetched
* @return the value of the column, or null if the column is not present
*/
public String getValue(String name) {
return getValue(name, null);
}
/**
* Fetches the value for a column.
*
* @param name the name of the column whose row is to be fetched
* @param defaultValue the value to return if the row has no value for the
* requested column; may be null
* @return the value of the column, or null if the column is not present
*/
public String getValue(String name, String defaultValue) {
if (StringUtils.isEmpty(name)) {
return defaultValue;
}
String val = (String) values.get(name);
if (val == null) {
return defaultValue;
}
return val;
}
/**
* Sets the value of a column.
*
* @param name the name of the column
* @param value the value for the column
*/
public void setValue(String name, String value) {
values.put(name, value == null ? "" : value);
}
}
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