Package kala.compress.harmony.unpack200
Class SegmentConstantPoolArrayCache.CachedArray
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- kala.compress.harmony.unpack200.SegmentConstantPoolArrayCache.CachedArray
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- Enclosing class:
- SegmentConstantPoolArrayCache
protected class SegmentConstantPoolArrayCache.CachedArray extends java.lang.ObjectKeeps track of the last known size of an array as well as a HashMap that knows the mapping from element values to the indices of the array which contain that value.
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Field Summary
Fields Modifier and Type Field Description (package private) intlastKnownSize(package private) java.lang.String[]primaryArray(package private) java.util.HashMap<java.lang.String,java.util.List<java.lang.Integer>>primaryTable
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Constructor Summary
Constructors Constructor Description CachedArray(java.lang.String[] array)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description protected voidcacheIndexes()Given a primaryArray, cache its values in a HashMap to provide a backwards mapping from element values to element indexes.java.util.List<java.lang.Integer>indexesForKey(java.lang.String key)Given a particular key, answer a List of index locations in the array which contain that key.intlastKnownSize()Answer the last known size of the array cached.
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Method Detail
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cacheIndexes
protected void cacheIndexes()
Given a primaryArray, cache its values in a HashMap to provide a backwards mapping from element values to element indexes. For instance, a primaryArray of: {"Zero", "Foo", "Two", "Foo"} would yield a HashMap of: "Zero" -> 0 "Foo" -> 1, 3 "Two" -> 2 which is then cached.
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indexesForKey
public java.util.List<java.lang.Integer> indexesForKey(java.lang.String key)
Given a particular key, answer a List of index locations in the array which contain that key. If no elements are found, answer an empty list.- Parameters:
key- String element of the array- Returns:
- List of indexes containing that key in the array.
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lastKnownSize
public int lastKnownSize()
Answer the last known size of the array cached. If the last known size is not the same as the current size, the array must have changed.- Returns:
- int last known size of the cached array
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