Package org.apache.xml.dtm.ref
Class DTMSafeStringPool
- java.lang.Object
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- org.apache.xml.dtm.ref.DTMStringPool
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- org.apache.xml.dtm.ref.DTMSafeStringPool
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public class DTMSafeStringPool extends DTMStringPool
Like DTMStringPool, but threadsafe. It's been proposed that DTMs share their string pool(s); that raises threadsafety issues which this addresses. Of course performance is inferior to that of the bare-bones version.
Status: Passed basic test in main().
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Field Summary
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Fields inherited from class org.apache.xml.dtm.ref.DTMStringPool
NULL
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Constructor Summary
Constructors Constructor Description DTMSafeStringPool()
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description java.lang.String
indexToString(int i)
static void
main(java.lang.String[] args)
Command-line unit test driver.void
removeAllElements()
int
stringToIndex(java.lang.String s)
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Method Detail
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removeAllElements
public void removeAllElements()
- Overrides:
removeAllElements
in classDTMStringPool
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indexToString
public java.lang.String indexToString(int i) throws java.lang.ArrayIndexOutOfBoundsException
- Overrides:
indexToString
in classDTMStringPool
- Returns:
- string whose value is uniquely identified by this integer index.
- Throws:
java.lang.ArrayIndexOutOfBoundsException
- if index doesn't map to a string.
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stringToIndex
public int stringToIndex(java.lang.String s)
- Overrides:
stringToIndex
in classDTMStringPool
- Returns:
- integer index uniquely identifying the value of this string.
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main
public static void main(java.lang.String[] args)
Command-line unit test driver. This test relies on the fact that this version of the pool assigns indices consecutively, starting from zero, as new unique strings are encountered.
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