private static class PerFieldPostingsFormat.FieldsReader extends FieldsProducer
Modifier and Type | Field and Description |
---|---|
private static long |
BASE_RAM_BYTES_USED |
private java.util.Map<java.lang.String,FieldsProducer> |
fields |
private java.util.Map<java.lang.String,FieldsProducer> |
formats |
private java.lang.String |
segment |
EMPTY_ARRAY
Constructor and Description |
---|
FieldsReader(PerFieldPostingsFormat.FieldsReader other) |
FieldsReader(SegmentReadState readState) |
Modifier and Type | Method and Description |
---|---|
void |
checkIntegrity()
Checks consistency of this reader.
|
void |
close() |
java.util.Collection<Accountable> |
getChildResources()
Returns nested resources of this class.
|
FieldsProducer |
getMergeInstance()
Returns an instance optimized for merging.
|
java.util.Iterator<java.lang.String> |
iterator()
Returns an iterator that will step through all fields
names.
|
long |
ramBytesUsed()
Return the memory usage of this object in bytes.
|
int |
size()
Returns the number of fields or -1 if the number of
distinct field names is unknown.
|
Terms |
terms(java.lang.String field)
Get the
Terms for this field. |
java.lang.String |
toString() |
private static final long BASE_RAM_BYTES_USED
private final java.util.Map<java.lang.String,FieldsProducer> fields
private final java.util.Map<java.lang.String,FieldsProducer> formats
private final java.lang.String segment
FieldsReader(PerFieldPostingsFormat.FieldsReader other)
public FieldsReader(SegmentReadState readState) throws java.io.IOException
java.io.IOException
public java.util.Iterator<java.lang.String> iterator()
Fields
public Terms terms(java.lang.String field) throws java.io.IOException
Fields
Terms
for this field. This will return
null if the field does not exist.public int size()
Fields
Fields.iterator()
will return as many field names.public void close() throws java.io.IOException
close
in interface java.io.Closeable
close
in interface java.lang.AutoCloseable
close
in class FieldsProducer
java.io.IOException
public long ramBytesUsed()
Accountable
public java.util.Collection<Accountable> getChildResources()
Accountable
Accountables
public void checkIntegrity() throws java.io.IOException
FieldsProducer
Note that this may be costly in terms of I/O, e.g. may involve computing a checksum value against large data files.
checkIntegrity
in class FieldsProducer
java.io.IOException
public FieldsProducer getMergeInstance()
FieldsProducer
FieldsProducer.getMergeInstance()
.
The default implementation returns this
getMergeInstance
in class FieldsProducer
public java.lang.String toString()
toString
in class java.lang.Object