Package org.apache.iotdb.db.mpp.transformation.datastructure

Class Cache

  • All Implemented Interfaces:
    java.io.Serializable, java.lang.Cloneable, java.util.Map<java.lang.Integer,​java.lang.Integer>
    public abstract class Cache
extends java.util.LinkedHashMap<java.lang.Integer,​java.lang.Integer>
    See Also:
    Serialized Form

    • Nested Class Summary

      • Nested classes/interfaces inherited from class java.util.AbstractMap

        java.util.AbstractMap.SimpleEntry<K extends java.lang.Object,​V extends java.lang.Object>, java.util.AbstractMap.SimpleImmutableEntry<K extends java.lang.Object,​V extends java.lang.Object>

    • Field Summary

      Fields 
      Modifier and Type Field Description
      protected int cacheCapacity  

    • Constructor Summary

      Constructors 
      Modifier Constructor Description
      protected Cache​(int cacheCapacity)  

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      int getLast()  
      protected java.lang.Integer putKey​(java.lang.Integer index)  
      protected boolean removeEldestEntry​(java.util.Map.Entry<java.lang.Integer,​java.lang.Integer> eldest)  

      • Methods inherited from class java.util.LinkedHashMap

        clear, containsValue, entrySet, forEach, get, getOrDefault, keySet, replaceAll, values

      • Methods inherited from class java.util.HashMap

        clone, compute, computeIfAbsent, computeIfPresent, containsKey, isEmpty, merge, put, putAll, putIfAbsent, remove, remove, replace, replace, size

      • Methods inherited from class java.util.AbstractMap

        equals, hashCode, toString

      • Methods inherited from class java.lang.Object

        finalize, getClass, notify, notifyAll, wait, wait, wait

      • Methods inherited from interface java.util.Map

        compute, computeIfAbsent, computeIfPresent, containsKey, equals, hashCode, isEmpty, merge, put, putAll, putIfAbsent, remove, remove, replace, replace, size

    • Field Detail

      • cacheCapacity

        protected final int cacheCapacity

    • Constructor Detail

      • Cache

        protected Cache​(int cacheCapacity)

    • Method Detail

      • removeEldestEntry

        protected boolean removeEldestEntry​(java.util.Map.Entry<java.lang.Integer,​java.lang.Integer> eldest)
        Overrides:
        removeEldestEntry in class java.util.LinkedHashMap<java.lang.Integer,​java.lang.Integer>

      • getLast

        public int getLast()

      • putKey

        protected java.lang.Integer putKey​(java.lang.Integer index)