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java.lang.Object org.apache.accumulo.core.client.impl.ScannerOptions org.apache.accumulo.core.client.impl.ScannerImpl
public class ScannerImpl
Field Summary |
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Fields inherited from class org.apache.accumulo.core.client.impl.ScannerOptions |
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fetchedColumns, serverSideIteratorList, serverSideIteratorOptions |
Constructor Summary | |
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ScannerImpl(Instance instance,
AuthInfo credentials,
String table,
Authorizations authorizations)
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Method Summary | |
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void |
disableIsolation()
Disables row isolation. |
void |
enableIsolation()
Enables row isolation. |
int |
getBatchSize()
Returns the batch size (number of Key/Value pairs) that will be fetched at a time from a tablet server. |
Range |
getRange()
Returns the range of keys to scan over. |
int |
getTimeOut()
Returns the setting for how long a scanner will automatically retry when a failure occurs. |
Iterator<Map.Entry<Key,Value>> |
iterator()
Returns an iterator over an accumulo table. |
void |
setBatchSize(int size)
Sets the number of Key/Value pairs that will be fetched at a time from a tablet server. |
void |
setRange(Range range)
Sets the range of keys to scan over. |
void |
setTimeOut(int timeOut)
When failure occurs, the scanner automatically retries. |
Methods inherited from class org.apache.accumulo.core.client.impl.ScannerOptions |
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addScanIterator, clearColumns, clearScanIterators, fetchColumn, fetchColumn, fetchColumnFamily, getFetchedColumns, removeScanIterator, setColumnFamilyRegex, setColumnQualifierRegex, setOptions, setRowRegex, setScanIteratorOption, setScanIterators, setupRegex, setValueRegex, updateScanIteratorOption |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Methods inherited from interface org.apache.accumulo.core.client.ScannerBase |
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addScanIterator, clearColumns, clearScanIterators, fetchColumn, fetchColumnFamily, removeScanIterator, setColumnFamilyRegex, setColumnQualifierRegex, setRowRegex, setScanIteratorOption, setScanIterators, setupRegex, setValueRegex, updateScanIteratorOption |
Constructor Detail |
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public ScannerImpl(Instance instance, AuthInfo credentials, String table, Authorizations authorizations)
Method Detail |
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public void setTimeOut(int timeOut)
setTimeOut
in interface Scanner
timeOut
- in millisecondspublic int getTimeOut()
Scanner
getTimeOut
in interface Scanner
public void setRange(Range range)
Scanner
setRange
in interface Scanner
range
- key range to begin and end scanpublic Range getRange()
Scanner
getRange
in interface Scanner
public void setBatchSize(int size)
Scanner
setBatchSize
in interface Scanner
size
- the number of Key/Value pairs to fetch per call to Accumulopublic int getBatchSize()
Scanner
getBatchSize
in interface Scanner
public Iterator<Map.Entry<Key,Value>> iterator()
iterator
in interface Iterable<Map.Entry<Key,Value>>
iterator
in interface ScannerBase
iterator
in class ScannerOptions
public void enableIsolation()
Scanner
enableIsolation
in interface Scanner
public void disableIsolation()
Scanner
disableIsolation
in interface Scanner
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