private static class PerFieldMergeState.FilterFieldsProducer extends FieldsProducer
Modifier and Type | Field and Description |
---|---|
private java.util.List<java.lang.String> |
filtered |
private FieldsProducer |
in |
EMPTY_ARRAY
Constructor and Description |
---|
FilterFieldsProducer(FieldsProducer in,
java.util.Collection<java.lang.String> filterFields) |
Modifier and Type | Method and Description |
---|---|
void |
checkIntegrity()
Checks consistency of this reader.
|
void |
close() |
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. |
getMergeInstance
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
getChildResources
private final FieldsProducer in
private final java.util.List<java.lang.String> filtered
FilterFieldsProducer(FieldsProducer in, java.util.Collection<java.lang.String> filterFields)
public long ramBytesUsed()
Accountable
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 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