Package org.apache.myfaces.util.lang
Class StringCharArrayAccessor
- java.lang.Object
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- org.apache.myfaces.util.lang.StringCharArrayAccessor
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public class StringCharArrayAccessor extends Object
Provides optimized access to java.lang.String internals - Optimized way of creating java.lang.String by reusing a char[] buffer - Optimized way of writing String to java.io.Writer java.lang.String creation reusing a char[] buffer requires Java 1.5+ System property "oam.stringchararrayaccessor.enabled" enables this hack. -Doam.stringchararrayaccessor.enabled=true Read JSR-133, "9.1.1 Post-Construction Modification of Final Fields" http://www.cs.umd.edu/~pugh/java/memoryModel/jsr133.pdf- Author:
- Lari Hotari, Sagire Software Oy see org.codehaus.groovy.grails.web.util.StreamCharBuffer file licensed under ASL v2.0 Copyright 2009 the original author or authors.
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static String
createString(char[] charBuf)
creates a new java.lang.String by setting the char array directly to the String instance with reflection.static boolean
isEnabled()
static void
writeStringAsCharArray(Writer writer, String str)
Writes a portion of a string to a target java.io.Writer with direct access to the char[] of the java.lang.Stringstatic void
writeStringAsCharArray(Writer writer, String str, int off, int len)
Writes a portion of a string to a target java.io.Writer with direct access to the char[] of the java.lang.String
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Method Detail
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writeStringAsCharArray
public static void writeStringAsCharArray(Writer writer, String str) throws IOException
Writes a portion of a string to a target java.io.Writer with direct access to the char[] of the java.lang.String- Parameters:
writer
- target java.io.Writer for outputstr
- A String- Throws:
IOException
- If an I/O error occurs
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writeStringAsCharArray
public static void writeStringAsCharArray(Writer writer, String str, int off, int len) throws IOException
Writes a portion of a string to a target java.io.Writer with direct access to the char[] of the java.lang.String- Parameters:
writer
- target java.io.Writer for outputstr
- A Stringoff
- Offset from which to start writing characterslen
- Number of characters to write- Throws:
IOException
- If an I/O error occurs
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createString
public static String createString(char[] charBuf)
creates a new java.lang.String by setting the char array directly to the String instance with reflection.- Parameters:
charBuf
- char array to be used as java.lang.String content, don't modify it after passing it.- Returns:
- new java.lang.String
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isEnabled
public static boolean isEnabled()
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