public final class DiskDocValuesFormat extends DocValuesFormat
Only things like disk offsets are loaded into ram.
Modifier and Type | Field and Description |
---|---|
static String |
DATA_CODEC |
static String |
DATA_EXTENSION |
static String |
META_CODEC |
static String |
META_EXTENSION |
Constructor and Description |
---|
DiskDocValuesFormat() |
Modifier and Type | Method and Description |
---|---|
DocValuesConsumer |
fieldsConsumer(SegmentWriteState state)
Returns a
DocValuesConsumer to write docvalues to the
index. |
DocValuesProducer |
fieldsProducer(SegmentReadState state)
Returns a
DocValuesProducer to read docvalues from the index. |
availableDocValuesFormats, forName, getName, reloadDocValuesFormats, toString
public static final String DATA_CODEC
public static final String DATA_EXTENSION
public static final String META_CODEC
public static final String META_EXTENSION
public DocValuesConsumer fieldsConsumer(SegmentWriteState state) throws IOException
DocValuesFormat
DocValuesConsumer
to write docvalues to the
index.fieldsConsumer
in class DocValuesFormat
IOException
public DocValuesProducer fieldsProducer(SegmentReadState state) throws IOException
DocValuesFormat
DocValuesProducer
to read docvalues from the index.
NOTE: by the time this call returns, it must hold open any files it will need to use; else, those files may be deleted. Additionally, required files may be deleted during the execution of this call before there is a chance to open them. Under these circumstances an IOException should be thrown by the implementation. IOExceptions are expected and will automatically cause a retry of the segment opening logic with the newly revised segments.
fieldsProducer
in class DocValuesFormat
IOException
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