com.nhncorp.neptune.client
Class Cell

java.lang.Object
  com.nhncorp.neptune.client.Cell

All Implemented Interfaces:

com.nhncorp.neptune.common.io.NWritable, java.lang.Comparable<Cell>, org.apache.hadoop.io.Writable

public class Cell
extends java.lang.Object
implements com.nhncorp.neptune.common.io.NWritable, org.apache.hadoop.io.Writable, java.lang.Comparable<Cell>

Neptune stores multiple values in a point of Row-Column.
Cell is Value Object which is stored that point. Cell is identified by Cell.Key in a Row.
A Cell has also multiple Cell.Value objects. Cell.Value is identified by timestamp.

Nested Class Summary

static class	Cell.Key Cell.Key class
static class	Cell.Value Cell내에 저장되어 있는 실제 값.

Constructor Summary

Cell()

Cell(Cell.Key key)

Cell(Cell.Key key, byte[] bytes)

Cell(Cell.Key key, byte[] bytes, long timestamp)

Method Summary

void	addValue(Cell.Value value) Add Cell.Value
int	compareTo(Cell o)
boolean	equals(java.lang.Object obj)
byte[]	getBytes() Return latest Cell.Value's bytes array
Cell.Key	getKey()
java.lang.String	getPrintValue()
java.lang.String	getPrintValue(java.lang.String encoding)
Cell.Value	getValue() Return latest Cell.Value
Cell.Value	getValue(int index) Return Cell.Value Cell.Value is sorted by timestamp descending
java.lang.String	getValueAsString() Return (latest Cell.Value's bytes array).toString()
java.util.List<Cell.Value>	getValues()
int	getValueSize() Return number of Cell.Value This value is not number of version in a Table, but number of Value which is matched with search condition.
void	readFields(java.io.DataInput in) Reads the fields of this object from in.
void	setKey(Cell.Key key)
void	setValues(java.util.List<Cell.Value> values)
void	write(java.io.DataOutput out) Writes the fields of this object to out.

Methods inherited from class java.lang.Object

getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Cell

public Cell()

Cell

public Cell(Cell.Key key)

Cell

public Cell(Cell.Key key,
            byte[] bytes)

Cell

public Cell(Cell.Key key,
            byte[] bytes,
            long timestamp)

Method Detail

addValue

public void addValue(Cell.Value value)

Add Cell.Value

Parameters:

value -

getKey

public Cell.Key getKey()

setKey

public void setKey(Cell.Key key)

getBytes

public byte[] getBytes()

Return latest Cell.Value's bytes array

Returns:

getValueAsString

public java.lang.String getValueAsString()

Return (latest Cell.Value's bytes array).toString()

Returns:

getValue

public Cell.Value getValue()

Return latest Cell.Value

Returns:

getValue

public Cell.Value getValue(int index)

Return Cell.Value
Cell.Value is sorted by timestamp descending

Parameters:

index -

Returns:

getValueSize

public int getValueSize()

Return number of Cell.Value
This value is not number of version in a Table, but number of Value which is matched with search condition.

Returns:

getValues

public java.util.List<Cell.Value> getValues()

setValues

public void setValues(java.util.List<Cell.Value> values)

getPrintValue

public java.lang.String getPrintValue(java.lang.String encoding)

getPrintValue

public java.lang.String getPrintValue()

readFields

public void readFields(java.io.DataInput in)
                throws java.io.IOException

Description copied from interface: com.nhncorp.neptune.common.io.NWritable

Reads the fields of this object from in. For efficiency, implementations should attempt to re-use storage in the existing object where possible.

Specified by:

readFields in interface com.nhncorp.neptune.common.io.NWritable

Specified by:

readFields in interface org.apache.hadoop.io.Writable

Throws:

java.io.IOException

write

public void write(java.io.DataOutput out)
           throws java.io.IOException

Description copied from interface: com.nhncorp.neptune.common.io.NWritable

Writes the fields of this object to out.

Specified by:

write in interface com.nhncorp.neptune.common.io.NWritable

Specified by:

write in interface org.apache.hadoop.io.Writable

Throws:

java.io.IOException

compareTo

public int compareTo(Cell o)

Specified by:

compareTo in interface java.lang.Comparable<Cell>

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object