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java.lang.Objectorg.apache.hadoop.hbase.util.Writables
@InterfaceAudience.Private public class Writables
Utility class with methods for manipulating Writable objects
| Constructor Summary | |
|---|---|
Writables()
|
|
| Method Summary | |
|---|---|
static org.apache.hadoop.io.Writable |
copyWritable(byte[] bytes,
org.apache.hadoop.io.Writable tgt)
Copy one Writable to another. |
static org.apache.hadoop.io.Writable |
copyWritable(org.apache.hadoop.io.Writable src,
org.apache.hadoop.io.Writable tgt)
Copy one Writable to another. |
static byte[] |
getBytes(org.apache.hadoop.io.Writable... ws)
Put a bunch of Writables as bytes all into the one byte array. |
static byte[] |
getBytes(org.apache.hadoop.io.Writable w)
|
static org.apache.hadoop.io.Writable |
getWritable(byte[] bytes,
int offset,
int length,
org.apache.hadoop.io.Writable w)
Set bytes into the passed Writable by calling its Writable.readFields(java.io.DataInput). |
static org.apache.hadoop.io.Writable |
getWritable(byte[] bytes,
org.apache.hadoop.io.Writable w)
Set bytes into the passed Writable by calling its Writable.readFields(java.io.DataInput). |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
|---|
public Writables()
| Method Detail |
|---|
public static byte[] getBytes(org.apache.hadoop.io.Writable w)
throws IOException
w - writable
w gotten by running its
Writable.write(java.io.DataOutput) method.
IOException - egetWritable(byte[], Writable)
public static byte[] getBytes(org.apache.hadoop.io.Writable... ws)
throws IOException
ws - writable
w gotten by running its
Writable.write(java.io.DataOutput) method.
IOException - e
public static org.apache.hadoop.io.Writable getWritable(byte[] bytes,
org.apache.hadoop.io.Writable w)
throws IOException
Writable.readFields(java.io.DataInput).
bytes - serialized bytesw - An empty Writable (usually made by calling the null-arg
constructor).
bytes array or IllegalArgumentException
if passed null or an empty bytes array.
IOException - e
IllegalArgumentException
public static org.apache.hadoop.io.Writable getWritable(byte[] bytes,
int offset,
int length,
org.apache.hadoop.io.Writable w)
throws IOException
Writable.readFields(java.io.DataInput).
bytes - serialized bytesoffset - offset into arraylength - length of dataw - An empty Writable (usually made by calling the null-arg
constructor).
bytes array or IllegalArgumentException
if passed null or an empty bytes array.
IOException - e
IllegalArgumentException
public static org.apache.hadoop.io.Writable copyWritable(org.apache.hadoop.io.Writable src,
org.apache.hadoop.io.Writable tgt)
throws IOException
src - Source Writabletgt - Target Writable
IOException - e
public static org.apache.hadoop.io.Writable copyWritable(byte[] bytes,
org.apache.hadoop.io.Writable tgt)
throws IOException
bytes - Source Writabletgt - Target Writable
IOException - e
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