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
:
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.
APPEND
- opens an existing index.
CREATE
public static final IndexWriterConfig.OpenMode CREATE
APPEND
public static final IndexWriterConfig.OpenMode APPEND
CREATE_OR_APPEND
public static final IndexWriterConfig.OpenMode CREATE_OR_APPEND
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
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