程序包 org.springframework.batch.repeat.context

类 RepeatContextCounter

  • public class RepeatContextCounter
extends java.lang.Object
    Helper class for policies that need to count the number of occurrences of some event (e.g. an exception type in the context) in the scope of a batch. The value of the counter can be stored between batches in a nested context, so that the termination decision is based on the aggregate of a number of sibling batches.
    作者:
    Dave Syer

    • 构造器详细资料

      • RepeatContextCounter

        public RepeatContextCounter​(RepeatContext context,
                            java.lang.String countKey)
        Convenience constructor with useParent=false.
        参数:
        context - the current context.
        countKey - the key to use to store the counter in the context.

      • RepeatContextCounter

        public RepeatContextCounter​(RepeatContext context,
                            java.lang.String countKey,
                            boolean useParent)
        Construct a new RepeatContextCounter.
        参数:
        context - the current context.
        countKey - the key to use to store the counter in the context.
        useParent - true if the counter is to be shared between siblings. The state will be stored in the parent of the context (if it exists) instead of the context itself.

    • 方法详细资料

      • increment

        public final void increment​(int delta)
        Increment the counter.
        参数:
        delta - the amount by which to increment the counter.

      • increment

        public final void increment()
        Increment by 1.

      • getCount

        public int getCount()
        返回:
        the current value of the counter