public void setValueAt(long value, int index) {
synchronized (this) {
int oldSize = getValuesSize();
for (int i = oldSize; i < index + 1; i++) {
addValue(0);
}
int[] offset = new int[1];
for (int i = 0; i < index; i++) {
DataUtil.readOffset(valuesBuff, offset);
}
int startOffset = offset[0];
DataUtil.readOffset(valuesBuff, offset);
int endOffset = offset[0];
checkValueBufferSize(value);
int newValLength = DataUtil.getValueLength(value);
int oldValLength = endOffset - startOffset;
if (newValLength != oldValLength) {
// need to move old values
short delta = (short) (newValLength - oldValLength);
int len = valuesBuffOffset - endOffset;
System.arraycopy(valuesBuff, endOffset, valuesBuff, endOffset + delta, len);
valuesBuffOffset = (short) (valuesBuffOffset + delta);
}
DataUtil.writeValue(valuesBuff, value, startOffset);
}
}
/* (non-Javadoc)
* @see com.telenav.framework.data.INode#getValueAt(int)
*/
public long getValueAt(int index) {
if (index >= nValues) return 0;
offsetValue[0] = 0;
// int[] offset = new int[] { 0 };
for (int i = 0; i < index; i++) {
DataUtil.readOffset(valuesBuff, offsetValue);
}
return DataUtil.readValue(valuesBuff, offsetValue);
}