- java.lang.Object
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- org.hsqldb.lib.ScannerSearchAlgorithm
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public class ScannerSearchAlgorithm extends java.lang.ObjectProvides a string search facility using aScanner.- Since:
- 2.7.x
- Author:
- Campbell Burnet (campbell-burnet@users dot sourceforge.net)
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Field Summary
Fields Modifier and Type Field Description static intSUGGESTED_MAX_LITERAL_SIZEis 1024.
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static longsearch(java.io.Reader reader, char[] searchstr, boolean literal)the givenreaderfor the givensearchstr.static longsearch(java.io.Reader reader, java.lang.String searchstr, boolean literal)the givenreaderfor the givensearchstr.static longsearch(java.io.Reader reader, java.util.regex.Pattern pattern)the givenreaderfor the givenpattern.
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Field Detail
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SUGGESTED_MAX_LITERAL_SIZE
public static final int SUGGESTED_MAX_LITERAL_SIZE
is 1024. This is the size above which it may be better to useKMPSearchAlgorithm.- See Also:
- Constant Field Values
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Method Detail
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search
public static long search(java.io.Reader reader, char[] searchstr, boolean literal)the givenreaderfor the givensearchstr.- Parameters:
reader- to searchsearchstr- to findliteral- true to treatsearchstras a literal search term; false to treatsearchstras a regular expression.- Returns:
- zero-based offset into stream at which
searchstris found; -1 if not found,readeris null, orsearchstris null; 0 ifsearchstr.length() == 0 && literal == true. - Throws:
java.lang.IllegalStateException- if aScannerillegal state occursjava.lang.IllegalArgumentException- if aScannerillegal argument is encountered.
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search
public static long search(java.io.Reader reader, java.lang.String searchstr, boolean literal) throws java.lang.NullPointerException, java.util.regex.PatternSyntaxException, java.lang.IllegalStateException, java.lang.IllegalArgumentExceptionthe givenreaderfor the givensearchstr.- Parameters:
reader- to searchsearchstr- to findliteral- true to treatsearchstras a literal search term; false to treatsearchstras a regular expression.- Returns:
- zero-based offset into stream at which
searchstris found; -1 if not found,readeris null, orsearchstris null; 0 ifsearchstr.length() == 0 && literal == true. - Throws:
java.util.regex.PatternSyntaxException- ifsearchstrexpression's syntax is invalidjava.lang.IllegalStateException- if aScannerillegal state occursjava.lang.IllegalArgumentException- if aScannerillegal argument is encountered.java.lang.NullPointerException
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search
public static long search(java.io.Reader reader, java.util.regex.Pattern pattern) throws java.lang.IllegalStateException, java.lang.IllegalArgumentExceptionthe givenreaderfor the givenpattern.- Parameters:
reader- to searchpattern- to find- Returns:
- zero-based offset into stream at which
searchstris found; -1 if not found; - Throws:
java.lang.NullPointerException- ifreaderis null orpatternis null.java.lang.IllegalStateException- if aScannerillegal state occursjava.lang.IllegalArgumentException- if aScannerillegal argument is encountered.
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