org.apache.lucene.index

Enum IndexWriterConfig.OpenMode

java.lang.Object

java.lang.Enum<IndexWriterConfig.OpenMode>

org.apache.lucene.index.IndexWriterConfig.OpenMode

All Implemented Interfaces:

Serializable, Comparable<IndexWriterConfig.OpenMode>

Enclosing class:

IndexWriterConfig

public static enum IndexWriterConfig.OpenMode
extends Enum<IndexWriterConfig.OpenMode>

Specifies the open mode for IndexWriter.

Enum Constant Summary

Enum Constants

Enum Constant and Description
APPEND Opens an existing index.
CREATE Creates a new index or overwrites an existing one.
CREATE_OR_APPEND Creates a new index if one does not exist, otherwise it opens the index and documents will be appended.

Method Summary

Modifier and Type	Method and Description
static IndexWriterConfig.OpenMode	valueOf(String name) Returns the enum constant of this type with the specified name.
static IndexWriterConfig.OpenMode[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

CREATE

public static final IndexWriterConfig.OpenMode CREATE

Creates a new index or overwrites an existing one.

APPEND

public static final IndexWriterConfig.OpenMode APPEND

Opens an existing index.

CREATE_OR_APPEND

public static final IndexWriterConfig.OpenMode CREATE_OR_APPEND

Creates a new index if one does not exist, otherwise it opens the index and documents will be appended.

Method Detail

values

public static IndexWriterConfig.OpenMode[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (IndexWriterConfig.OpenMode c : IndexWriterConfig.OpenMode.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static IndexWriterConfig.OpenMode valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null