Class String

src/main/java/org/mapdb/Atomic.java:633–707

A String record that may be updated atomically.

    * A {@code String} record that may be updated atomically.
    */
    public final static class String{

        protected final Store store;
        protected final long recid;

        public String(Store store, long recid) {
            this.store = store;
            this.recid = recid;
        }


        /**
         * @return recid under which value is saved
         */
        public long getRecid(){
            return recid;
        }

        public java.lang.String toString() {
            return get();
        }

        /**
         * Returns the current value.
         *
         * @return the current value
         */
        public final java.lang.String get() {
            return store.get(recid, Serializer.STRING_NOSIZE);
        }

        /**
         * Atomically sets the value to the given updated value
         * if the current value equals the expected value.
         *
         * @param expect the expected value
         * @param update the new value
         * @return true if successful. False return indicates that
         * the actual value was not equal to the expected value.
         */
        public final boolean compareAndSet(java.lang.String expect, java.lang.String update) {
            return store.compareAndSwap(recid, expect, update, Serializer.STRING_NOSIZE);
        }


        /**
         * Unconditionally sets to the given value.
         *
         * @param newValue the new value
         */
        public final void set(java.lang.String newValue) {
            store.update(recid, newValue, Serializer.STRING_NOSIZE);
        }


        /**
         * Atomically sets to the given value and returns the previous value.
         *