+ }
+
+ SequenceI datasetSequence;
+
+ private String name;
+
+ private char[] sequence;
+
+ private String description;
+
+ private int start;
+
+ private int end;
+
+ private Vector<PDBEntry> pdbIds;
+
+ private String vamsasId;
+
+ private DBModList<DBRefEntry> dbrefs; // controlled access
+
+ /**
+ * a flag to let us know that elements have changed in dbrefs
+ *
+ * @author Bob Hanson
+ */
+ private int refModCount = 0;
+
+ private RNA rna;
+
+ /**
+ * This annotation is displayed below the alignment but the positions are tied
+ * to the residues of this sequence
+ *
+ * TODO: change to List<>
+ */
+ private Vector<AlignmentAnnotation> annotation;
+
+ private SequenceFeaturesI sequenceFeatureStore;
+
+ /*
+ * A cursor holding the approximate current view position to the sequence,
+ * as determined by findIndex or findPosition or findPositions.
+ * Using a cursor as a hint allows these methods to be more performant for
+ * large sequences.
+ */
+ private SequenceCursor cursor;
+
+ /*
+ * A number that should be incremented whenever the sequence is edited.
+ * If the value matches the cursor token, then we can trust the cursor,
+ * if not then it should be recomputed.
+ */
+ private int changeCount;
+
+ /**
+ * Creates a new Sequence object.
+ *
+ * @param name
+ * display name string
+ * @param sequence
+ * string to form a possibly gapped sequence out of
+ * @param start
+ * first position of non-gap residue in the sequence
+ * @param end
+ * last position of ungapped residues (nearly always only used for
+ * display purposes)
+ */
+ public Sequence(String name, String sequence, int start, int end)
+ {
+ this();
+ initSeqAndName(name, sequence.toCharArray(), start, end);
+ }
+
+ public Sequence(String name, char[] sequence, int start, int end)
+ {
+ this();
+ initSeqAndName(name, sequence, start, end);
+ }
+
+ /**
+ * Stage 1 constructor - assign name, sequence, and set start and end fields.
+ * start and end are updated values from name2 if it ends with /start-end
+ *
+ * @param name2
+ * @param sequence2
+ * @param start2
+ * @param end2
+ */
+ protected void initSeqAndName(String name2, char[] sequence2, int start2,
+ int end2)
+ {
+ this.name = name2;
+ this.sequence = sequence2;
+ this.start = start2;
+ this.end = end2;
+ parseId();
+ checkValidRange();
+ }
+
+ /**
+ * If 'name' ends in /i-j, where i >= j > 0 are integers, extracts i and j as
+ * start and end respectively and removes the suffix from the name
+ */
+ void parseId()
+ {
+ if (name == null)
+ {
+ System.err.println(
+ "POSSIBLE IMPLEMENTATION ERROR: null sequence name passed to constructor.");
+ name = "";
+ }
+ int slashPos = name.lastIndexOf('/');
+ if (slashPos > -1 && slashPos < name.length() - 1)
+ {
+ String suffix = name.substring(slashPos + 1);
+ String[] range = suffix.split("-");
+ if (range.length == 2)
+ {
+ try
+ {
+ int from = Integer.valueOf(range[0]);
+ int to = Integer.valueOf(range[1]);
+ if (from > 0 && to >= from)
+ {
+ name = name.substring(0, slashPos);
+ setStart(from);
+ setEnd(to);
+ checkValidRange();
+ }
+ } catch (NumberFormatException e)
+ {
+ // leave name unchanged if suffix is invalid
+ }
+ }
+ }
+ }
+
+ /**
+ * Ensures that 'end' is not before the end of the sequence, that is,
+ * (end-start+1) is at least as long as the count of ungapped positions. Note
+ * that end is permitted to be beyond the end of the sequence data.
+ */
+ void checkValidRange()
+ {
+ // Note: JAL-774 :
+ // http://issues.jalview.org/browse/JAL-774?focusedCommentId=11239&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-11239
+ {
+ int endRes = 0;
+ for (int j = 0; j < sequence.length; j++)
+ {
+ if (!Comparison.isGap(sequence[j]))
+ {
+ endRes++;
+ }
+ }
+ if (endRes > 0)
+ {
+ endRes += start - 1;
+ }