Package org.apache.oro.text
Class PatternCacheLRU
- java.lang.Object
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- org.apache.oro.text.GenericPatternCache
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- org.apache.oro.text.PatternCacheLRU
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- All Implemented Interfaces:
PatternCache
public final class PatternCacheLRU extends GenericPatternCache
This class is a GenericPatternCache subclass implementing an LRU (Least Recently Used) cache replacement policy. In other words, patterns are added to the cache until it becomes full. Once the cache is full, when a new pattern is added to the cache, it replaces the least recently used pattern currently in the cache. This is probably the best general purpose pattern cache replacement policy.- Since:
- 1.0
- Version:
- ,
- See Also:
GenericPatternCache
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Field Summary
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Fields inherited from class org.apache.oro.text.GenericPatternCache
DEFAULT_CAPACITY
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Constructor Summary
Constructors Constructor Description PatternCacheLRU()
Same as:PatternCacheLRU(int capacity)
Same as:PatternCacheLRU(int capacity, PatternCompiler compiler)
Creates a PatternCacheLRU instance with a given cache capacity, and initialized to use a given PatternCompiler instance as a pattern compiler.PatternCacheLRU(PatternCompiler compiler)
Same as:
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Method Summary
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Methods inherited from class org.apache.oro.text.GenericPatternCache
addPattern, addPattern, capacity, getPattern, getPattern, size
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Constructor Detail
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PatternCacheLRU
public PatternCacheLRU(int capacity, PatternCompiler compiler)
Creates a PatternCacheLRU instance with a given cache capacity, and initialized to use a given PatternCompiler instance as a pattern compiler.- Parameters:
capacity
- The capacity of the cache.compiler
- The PatternCompiler to use to compile patterns.
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PatternCacheLRU
public PatternCacheLRU(PatternCompiler compiler)
Same as:PatternCacheLRU(GenericPatternCache.DEFAULT_CAPACITY, compiler);
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PatternCacheLRU
public PatternCacheLRU(int capacity)
Same as:PatternCacheLRU(capacity, new Perl5Compiler());
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PatternCacheLRU
public PatternCacheLRU()
Same as:PatternCacheLRU(GenericPatternCache.DEFAULT_CAPACITY);
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