diff options
Diffstat (limited to 'moaSig/moa-sig-lib/src/main/java/at/gv/egovernment/moa/spss/server/util')
-rw-r--r-- | moaSig/moa-sig-lib/src/main/java/at/gv/egovernment/moa/spss/server/util/IdGenerator.java | 43 |
1 files changed, 22 insertions, 21 deletions
diff --git a/moaSig/moa-sig-lib/src/main/java/at/gv/egovernment/moa/spss/server/util/IdGenerator.java b/moaSig/moa-sig-lib/src/main/java/at/gv/egovernment/moa/spss/server/util/IdGenerator.java index a8d9e1b..a6bc653 100644 --- a/moaSig/moa-sig-lib/src/main/java/at/gv/egovernment/moa/spss/server/util/IdGenerator.java +++ b/moaSig/moa-sig-lib/src/main/java/at/gv/egovernment/moa/spss/server/util/IdGenerator.java @@ -21,65 +21,66 @@ * that you distribute must include a readable copy of the "NOTICE" text file. */ - package at.gv.egovernment.moa.spss.server.util; import java.util.Set; /** * Generate unique ID values for various objects in the response. - * + * * @author Patrick Peck * @version $Id$ */ public class IdGenerator { /** The base value to append the counter to. */ - private String base; + private final String base; /** The <code>Set</code> of reserved ID values. */ - private Set reserved; + private final Set reserved; /** The sequence number. */ private int count; - + /** * Create a new <code>IdGenerator</code>. - * - * @param base A base value to append the IDs to. The creator of this object - * should provide a base value, so that appending the counter leads to unique - * IDs. - * @param reserved The <code>Set</code> of reserved IDs. A call to - * <code>uniqueId()</code> will respect the reserved IDs. + * + * @param base A base value to append the IDs to. The creator of this object + * should provide a base value, so that appending the counter + * leads to unique IDs. + * @param reserved The <code>Set</code> of reserved IDs. A call to + * <code>uniqueId()</code> will respect the reserved IDs. */ public IdGenerator(String base, Set reserved) { this.base = base; this.reserved = reserved; count = 1; } - + /** * Create the next ID value in the sequence. - * + * * @return The next ID value in the sequence. */ protected String nextId() { return base + "-" + count++; } - + /** * Create the next unique ID value which is unique in the reserved ID set. - * + * * The created ID is added to the set of reserved IDs. - * + * * @return The next ID value. */ public String uniqueId() { String nextId; - while (reserved.contains(nextId = nextId())); - + while (reserved.contains(nextId = nextId())) { + ; + } + reserved.add(nextId); - + return nextId; - + } - + } |