org.apache.lucene.analysis.tokenattributes

Class FlagsAttributeImpl

java.lang.Object

org.apache.lucene.util.AttributeImpl

org.apache.lucene.analysis.tokenattributes.FlagsAttributeImpl

All Implemented Interfaces:

Serializable, Cloneable, FlagsAttribute, Attribute

public class FlagsAttributeImpl
extends AttributeImpl
implements FlagsAttribute, Cloneable, Serializable

This attribute can be used to pass different flags down the tokenizer chain, eg from one TokenFilter to another one.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
FlagsAttributeImpl()

Method Summary

Methods

Modifier and Type	Method and Description
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.
boolean	equals(Object other) All values used for computation of AttributeImpl.hashCode() should be checked here for equality.
int	getFlags() EXPERIMENTAL: While we think this is here to stay, we may want to change it to be a long.
int	hashCode() Subclasses must implement this method and should compute a hashCode similar to this:
void	setFlags(int flags)

Methods inherited from class org.apache.lucene.util.AttributeImpl

clone, toString

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

FlagsAttributeImpl

public FlagsAttributeImpl()

Method Detail

getFlags

public int getFlags()

EXPERIMENTAL: While we think this is here to stay, we may want to change it to be a long.

Get the bitset for any bits that have been set. This is completely distinct from TypeAttribute.type(), although they do share similar purposes. The flags can be used to encode information about the token for use by other TokenFilters.

Specified by:

getFlags in interface FlagsAttribute

Returns:

The bits

setFlags

public void setFlags(int flags)

Specified by:

setFlags in interface FlagsAttribute

See Also:

getFlags()

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)

Description copied from class: AttributeImpl

All values used for computation of AttributeImpl.hashCode() should be checked here for equality. see also Object.equals(Object)

Specified by:

equals in class AttributeImpl

hashCode

public int hashCode()

Description copied from class: AttributeImpl

Subclasses must implement this method and should compute a hashCode similar to this:

   public int hashCode() {
     int code = startOffset;
     code = code * 31 + endOffset;
     return code;
   }
 

see also AttributeImpl.equals(Object)

Specified by:

hashCode in class AttributeImpl

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