Package db

Class BinaryField

java.lang.Object

db.Field

db.BinaryField

All Implemented Interfaces:

java.lang.Comparable<Field>

Direct Known Subclasses:

BinaryCodedField

public class BinaryField
extends Field

BinaryField provides a wrapper for variable length binary data which is read or written to a Record.

Field Summary

Fields

Modifier and Type	Field	Description
protected byte[]	data

Constructor Summary

Constructors

Constructor	Description
BinaryField()	Construct a binary data field with an initial value of null.
BinaryField(byte[] data)	Construct a binary data field with an initial value of data.

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
java.lang.String	getValueAsString()
int	hashCode()
boolean	isVariableLength()
Field	newField()	Create new instance of this field type.
Field	newField(Field fieldValue)	Create new instance of this field type.
void	setBinaryData(byte[] data)	Set data from binary byte array.
java.lang.String	toString()

Methods inherited from class db.Field

getBooleanValue, getByteValue, getIntValue, getLongValue, getShortValue, getString, setBooleanValue, setByteValue, setIntValue, setLongValue, setShortValue, setString

Methods inherited from class java.lang.Object

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

Field Detail

data

protected byte[] data

Constructor Detail

BinaryField

public BinaryField()

Construct a binary data field with an initial value of null.

BinaryField

public BinaryField(byte[] data)

Construct a binary data field with an initial value of data.

Parameters:

data - initial value

Method Detail

getBinaryData

public byte[] getBinaryData()

Description copied from class: Field

Get data as a byte array.

Specified by:

getBinaryData in class Field

Returns:

byte[]

setBinaryData

public void setBinaryData(byte[] data)

Description copied from class: Field

Set data from binary byte array. All variable-length fields must implement this method.

Overrides:

setBinaryData in class Field

Parameters:

data - field data

isVariableLength

public boolean isVariableLength()

Overrides:

isVariableLength in class Field

Returns:

true if a Field instance is variable length, else false.

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

hashCode

public int hashCode()

Specified by:

hashCode in class Field