public class CqlRecordReader
extends org.apache.hadoop.mapreduce.RecordReader<java.lang.Long,com.datastax.driver.core.Row>
implements org.apache.hadoop.mapred.RecordReader<java.lang.Long,com.datastax.driver.core.Row>
| Modifier and Type | Field and Description |
|---|---|
static int |
DEFAULT_CQL_PAGE_LIMIT |
| Constructor and Description |
|---|
CqlRecordReader() |
| Modifier and Type | Method and Description |
|---|---|
void |
close() |
java.lang.Long |
createKey() |
com.datastax.driver.core.Row |
createValue() |
java.lang.Long |
getCurrentKey() |
com.datastax.driver.core.Row |
getCurrentValue() |
long |
getPos() |
float |
getProgress() |
void |
initialize(org.apache.hadoop.mapreduce.InputSplit split,
org.apache.hadoop.mapreduce.TaskAttemptContext context) |
boolean |
next(java.lang.Long key,
com.datastax.driver.core.Row value) |
boolean |
nextKeyValue() |
public static final int DEFAULT_CQL_PAGE_LIMIT
public void initialize(org.apache.hadoop.mapreduce.InputSplit split,
org.apache.hadoop.mapreduce.TaskAttemptContext context)
throws java.io.IOException
initialize in class org.apache.hadoop.mapreduce.RecordReader<java.lang.Long,com.datastax.driver.core.Row>java.io.IOExceptionpublic void close()
close in interface java.io.Closeableclose in interface java.lang.AutoCloseableclose in interface org.apache.hadoop.mapred.RecordReader<java.lang.Long,com.datastax.driver.core.Row>close in class org.apache.hadoop.mapreduce.RecordReader<java.lang.Long,com.datastax.driver.core.Row>public java.lang.Long getCurrentKey()
getCurrentKey in class org.apache.hadoop.mapreduce.RecordReader<java.lang.Long,com.datastax.driver.core.Row>public com.datastax.driver.core.Row getCurrentValue()
getCurrentValue in class org.apache.hadoop.mapreduce.RecordReader<java.lang.Long,com.datastax.driver.core.Row>public float getProgress()
getProgress in interface org.apache.hadoop.mapred.RecordReader<java.lang.Long,com.datastax.driver.core.Row>getProgress in class org.apache.hadoop.mapreduce.RecordReader<java.lang.Long,com.datastax.driver.core.Row>public boolean nextKeyValue()
throws java.io.IOException
nextKeyValue in class org.apache.hadoop.mapreduce.RecordReader<java.lang.Long,com.datastax.driver.core.Row>java.io.IOExceptionpublic boolean next(java.lang.Long key,
com.datastax.driver.core.Row value)
throws java.io.IOException
next in interface org.apache.hadoop.mapred.RecordReader<java.lang.Long,com.datastax.driver.core.Row>java.io.IOExceptionpublic long getPos()
throws java.io.IOException
getPos in interface org.apache.hadoop.mapred.RecordReader<java.lang.Long,com.datastax.driver.core.Row>java.io.IOExceptionpublic java.lang.Long createKey()
createKey in interface org.apache.hadoop.mapred.RecordReader<java.lang.Long,com.datastax.driver.core.Row>public com.datastax.driver.core.Row createValue()
createValue in interface org.apache.hadoop.mapred.RecordReader<java.lang.Long,com.datastax.driver.core.Row>Copyright © 2015 The Apache Software Foundation