org.netbeans.mdr.persistence.btreeimpl.btreeindex

Class MOFIDInfo

java.lang.Object

org.netbeans.mdr.persistence.btreeimpl.btreeindex.EntryTypeInfo

org.netbeans.mdr.persistence.btreeimpl.btreeindex.MOFIDInfo

public class MOFIDInfo
extends EntryTypeInfo

EntryTypeInfo implementation for type MOFID

Version:

1.0

Author:

Dana Bergen

Method Summary

Methods

Modifier and Type	Method and Description
byte	compare(byte[] key, byte[] buffer, int offset, int targetLength) Compares two MOFIDs byte-by-byte.
java.lang.Object	fromBuffer(byte[] buffer) Create an object from the contents of the byte array.
int	getLength() Returns the length of an item of this type, or 0 if variable length.
boolean	isFixedLength() Returns true if this is a fixed length type, otherwise returns false;
java.lang.Object	objectFromBuffer(byte[] buffer, SinglevaluedIndex repos) Like fromBuffer, except that if this type is a key, returns object associated with the key
byte[]	toBuffer(java.lang.Object object) Store the value of the object in a byte array.
java.lang.String	typeName() Returns the name of this type as a String.

Methods inherited from class org.netbeans.mdr.persistence.btreeimpl.btreeindex.EntryTypeInfo

getEntryTypeInfo

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

typeName

public java.lang.String typeName()

Description copied from class: EntryTypeInfo

Returns the name of this type as a String.

Specified by:

typeName in class EntryTypeInfo

compare

public byte compare(byte[] key,
           byte[] buffer,
           int offset,
           int targetLength)

Compares two MOFIDs byte-by-byte.

Specified by:

compare in class EntryTypeInfo

Parameters:

key - byte array containing search key

buffer - buffer containing target key

offset - offset into buffer of target key

length - should always be MOFID.LENGTH

Returns:

Returns one of:

EQUAL if the two keys are equal

GREATER if search key is greater than target key

LESS if search key is less than target key

getLength

public int getLength()

Description copied from class: EntryTypeInfo

Returns the length of an item of this type, or 0 if variable length.

Specified by:

getLength in class EntryTypeInfo

isFixedLength

public boolean isFixedLength()

Description copied from class: EntryTypeInfo

Returns true if this is a fixed length type, otherwise returns false;

Specified by:

isFixedLength in class EntryTypeInfo

toBuffer

public byte[] toBuffer(java.lang.Object object)

Description copied from class: EntryTypeInfo

Store the value of the object in a byte array.

Specified by:

toBuffer in class EntryTypeInfo

Returns:

newly allocated byte array

fromBuffer

public java.lang.Object fromBuffer(byte[] buffer)

Description copied from class: EntryTypeInfo

Create an object from the contents of the byte array.

Specified by:

fromBuffer in class EntryTypeInfo

Returns:

new object

objectFromBuffer

public java.lang.Object objectFromBuffer(byte[] buffer,
                                SinglevaluedIndex repos)

Description copied from class: EntryTypeInfo

Like fromBuffer, except that if this type is a key, returns object associated with the key

Overrides:

objectFromBuffer in class EntryTypeInfo

Returns:

new object