Package db

Class LongField

java.lang.Object

db.Field

db.LongField

All Implemented Interfaces:

java.lang.Comparable<Field>

public class LongField
extends Field

LongField provides a wrapper for 8-byte signed long data which is read or written to a Record.

Constructor Summary

Constructors

Constructor	Description
LongField()	Construct a long field with an initial value of 0.
LongField(long l)	Construct a long field with an initial value of l.

Method Summary

Modifier and Type	Method	Description
int	compareTo(Field o)
boolean	equals(java.lang.Object obj)
byte[]	getBinaryData()	Get data as a byte array.
protected byte	getFieldType()	Return Field instance type as an integer value
long	getLongValue()	Get field as a long value.
java.lang.String	getValueAsString()
int	hashCode()
Field	newField()	Create new instance of this field type.
Field	newField(Field fieldValue)	Create new instance of this field type.
void	setLongValue(long value)	Set field's long value.
java.lang.String	toString()

Methods inherited from class db.Field

getBooleanValue, getByteValue, getIntValue, getShortValue, getString, isVariableLength, setBinaryData, setBooleanValue, setByteValue, setIntValue, setShortValue, setString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

LongField

public LongField()

Construct a long field with an initial value of 0.

LongField

public LongField(long l)

Construct a long field with an initial value of l.

Parameters:

l - initial value

Method Detail

getLongValue

public long getLongValue()

Description copied from class: Field

Get field as a long value. All fixed-length field objects must implement this method

Overrides:

getLongValue in class Field

Returns:

long value

setLongValue

public void setLongValue(long value)

Description copied from class: Field

Set field's long value. All fixed-length field objects must implement this method

Overrides:

setLongValue in class Field

Parameters:

value - long value

getFieldType

protected byte getFieldType()

Description copied from class: Field

Return Field instance type as an integer value

Specified by:

getFieldType in class Field

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

getValueAsString

public java.lang.String getValueAsString()

Specified by:

getValueAsString in class Field

equals

public boolean equals(java.lang.Object obj)

Specified by:

equals in class Field

compareTo

public int compareTo(Field o)

newField

public Field newField(Field fieldValue)

Description copied from class: Field

Create new instance of this field type.

Specified by:

newField in class Field

Parameters:

fieldValue - initial field value.

Returns:

long

newField

public Field newField()

Description copied from class: Field

Create new instance of this field type.

Specified by:

newField in class Field

Returns:

long

getBinaryData

public byte[] getBinaryData()

Description copied from class: Field

Get data as a byte array.

Specified by:

getBinaryData in class Field

Returns:

byte[]

hashCode

public int hashCode()

Specified by:

hashCode in class Field