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java.lang.Object org.apache.lucene.sandbox.queries.regex.JakartaRegexpCapabilities
public class JakartaRegexpCapabilities
Implementation tying Jakarta
Regexp to RegexQuery. Jakarta Regexp internally supports a
RegexCapabilities.RegexMatcher.prefix()
implementation which can offer
performance gains under certain circumstances. Yet, the implementation appears
to be rather shaky as it doesn't always provide a prefix even if one would exist.
Nested Class Summary |
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Nested classes/interfaces inherited from interface org.apache.lucene.sandbox.queries.regex.RegexCapabilities |
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RegexCapabilities.RegexMatcher |
Field Summary | |
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static int |
FLAG_MATCH_CASEINDEPENDENT
Flag to specify that matching should be case-independent (folded) |
static int |
FLAG_MATCH_NORMAL
Flag to specify normal, case-sensitive matching behaviour. |
Constructor Summary | |
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JakartaRegexpCapabilities()
Constructs a RegexCapabilities with the default MATCH_NORMAL match style. |
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JakartaRegexpCapabilities(int flags)
Constructs a RegexCapabilities with the provided match flags. |
Method Summary | |
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RegexCapabilities.RegexMatcher |
compile(String regex)
Called by the constructor of RegexTermsEnum allowing
implementations to cache a compiled version of the regular
expression pattern. |
boolean |
equals(Object obj)
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int |
hashCode()
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Methods inherited from class java.lang.Object |
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clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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public static final int FLAG_MATCH_NORMAL
public static final int FLAG_MATCH_CASEINDEPENDENT
Constructor Detail |
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public JakartaRegexpCapabilities()
public JakartaRegexpCapabilities(int flags)
flags
- The matching styleMethod Detail |
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public RegexCapabilities.RegexMatcher compile(String regex)
RegexCapabilities
RegexTermsEnum
allowing
implementations to cache a compiled version of the regular
expression pattern.
compile
in interface RegexCapabilities
regex
- regular expression patternpublic int hashCode()
hashCode
in class Object
public boolean equals(Object obj)
equals
in class Object
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