org.apache.lucene.analysis.tokenattributes
Class OffsetAttributeImpl

java.lang.Object
  extended by org.apache.lucene.util.AttributeImpl
      extended by org.apache.lucene.analysis.tokenattributes.OffsetAttributeImpl
All Implemented Interfaces:
Serializable, Cloneable, OffsetAttribute, Attribute

public class OffsetAttributeImpl
extends AttributeImpl
implements OffsetAttribute, Cloneable, Serializable

The start and end character offset of a Token.

See Also:
Serialized Form

Field Summary
 
Fields inherited from class org.apache.lucene.util.AttributeImpl
enableBackwards
 
Constructor Summary
OffsetAttributeImpl()
           
 
Method Summary
 void clear()
          Clears the values in this AttributeImpl and resets it to its default value.
 void copyTo(AttributeImpl target)
          Copies the values from this Attribute into the passed-in target attribute.
 int endOffset()
          Returns this Token's ending offset, one greater than the position of the last character corresponding to this token in the source text.
 boolean equals(Object other)
           
 int hashCode()
           
 void setOffset(int startOffset, int endOffset)
          Set the starting and ending offset.
 int startOffset()
          Returns this Token's starting offset, the position of the first character corresponding to this token in the source text.
 
Methods inherited from class org.apache.lucene.util.AttributeImpl
clone, reflectAsString, reflectWith, toString
 
Methods inherited from class java.lang.Object
finalize, getClass, notify, notifyAll, wait, wait, wait
 

Constructor Detail

OffsetAttributeImpl

public OffsetAttributeImpl()
Method Detail

startOffset

public int startOffset()
Returns this Token's starting offset, the position of the first character corresponding to this token in the source text. Note that the difference between endOffset() and startOffset() may not be equal to termText.length(), as the term text may have been altered by a stemmer or some other filter.

Specified by:
startOffset in interface OffsetAttribute

setOffset

public void setOffset(int startOffset,
                      int endOffset)
Set the starting and ending offset.

Specified by:
setOffset in interface OffsetAttribute
See Also:
and #endOffset()

endOffset

public int endOffset()
Returns this Token's ending offset, one greater than the position of the last character corresponding to this token in the source text. The length of the token in the source text is (endOffset - startOffset).

Specified by:
endOffset in interface OffsetAttribute

clear

public void clear()
Description copied from class: AttributeImpl
Clears the values in this AttributeImpl and resets it to its default value. If this implementation implements more than one Attribute interface it clears all.

Specified by:
clear in class AttributeImpl

equals

public boolean equals(Object other)
Overrides:
equals in class Object

hashCode

public int hashCode()
Overrides:
hashCode in class Object

copyTo

public void copyTo(AttributeImpl target)
Description copied from class: AttributeImpl
Copies the values from this Attribute into the passed-in target attribute. The target implementation must support all the Attributes this implementation supports.

Specified by:
copyTo in class AttributeImpl