AlphanumericCollator

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java.lang.Object
- net.sf.saxon.sort.AlphanumericCollator

All Implemented Interfaces:

java.io.Serializable, StringCollator
```
public class AlphanumericCollator
extends java.lang.Object
implements StringCollator, java.io.Serializable
```
A Comparer that treats strings as an alternating sequence of alpha parts and numeric parts. The alpha parts are compared using a base collation supplied as a parameter; the numeric parts are compared numerically. "Numeric" here means a sequence of consecutive ASCII digits 0-9.
Note: this StringCollator produces an ordering that is not compatible with equals().

See Also:

Serialized Form

Constructor Summary

Constructors
Constructor Description

AlphanumericCollator(StringCollator base)
Create an alphanumeric collation

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`int`	`compareStrings(java.lang.String s1, java.lang.String s2)`	Compare two objects.
`java.lang.Object`	`getCollationKey(java.lang.String s)`	Get a collation key for two Strings.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - AlphanumericCollator
```
public AlphanumericCollator(StringCollator base)
```
    Create an alphanumeric collation
    
    Parameters:
    
    base - the collation used to compare the alphabetic parts of the string
- Method Detail
  - compareStrings
```
public int compareStrings(java.lang.String s1,
                          java.lang.String s2)
```
    Compare two objects.
    
    Specified by:
    
    compareStrings in interface StringCollator
    
    Parameters:
    
    s1 - the first string
    
    s2 - the second string
    
    Returns:
    
    <0 if a0 if a>b
  - getCollationKey
```
public java.lang.Object getCollationKey(java.lang.String s)
```
    Get a collation key for two Strings. The essential property of collation keys is that if two values are equal under the collation, then the collation keys are compare correctly under the equals() method.
    
    Specified by:
    
    getCollationKey in interface StringCollator
    
    Parameters:
    
    s - the string whose collation key is required
    
    Returns:
    
    the collation key

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