Package convex.core.data

Class ALongBlob

java.lang.Object

convex.core.data.AObject

convex.core.data.ACell

convex.core.data.ACountable<CVMByte>

convex.core.data.ABlob

convex.core.data.ALongBlob

All Implemented Interfaces:

IValidated, IWriteable, Comparable<ABlob>

Direct Known Subclasses:

Address, LongBlob

public abstract class ALongBlob
extends ABlob

Field Summary

Fields

Modifier and Type	Field	Description
protected static long	LENGTH
protected long	value

Fields inherited from class convex.core.data.ABlob

contentHash

Fields inherited from class convex.core.data.ACell

cachedRef, EMPTY_ARRAY

Fields inherited from class convex.core.data.AObject

encoding

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	ALongBlob(long value)

Method Summary

Modifier and Type	Method	Description
ABlob	append(ABlob d)	Append an additional Blob to this, creating a new Blob as needed.
void	appendHexString(BlobBuilder sb, int length)	Append hex string up to the given length (a multiple of two)
byte	byteAt(long i)	Gets the byte at the specified position in this blob
protected long	calcMemorySize()	Calculates the Memory Size for this Cell.
long	commonHexPrefixLength(ABlob b)	Computes the length of the longest common hex prefix between two blobs
long	count()	Gets the length of this Blob
protected <R extends ACell> Ref<R>	createRef()	Creates a new Ref for this Cell
abstract boolean	equals(ABlob o)	Determines if this Blob is equal to another Blob.
boolean	equalsBytes(ABlob b)	Tests if this Blob has exactly the same bytes as another Blob
ByteBuffer	getByteBuffer()	Gets a byte buffer containing this Blob's data.
Blob	getChunk(long i)	Gets a chunk of this Blob, as a canonical Blob up to the maximum chunk size.
int	getRefCount()	Gets the number of Refs contained within this Cell.
abstract byte	getTag()	Gets the tag byte for this cell.
byte	getUnchecked(long i)	Gets the byte at the specified position in this data object, without bounds checking.
long	hexMatchLength(ABlob b, long start, long length)	Returns the number of matching hex digits in the given hex range of another Blob.
boolean	isCanonical()	Returns true if this Cell is in a canonical representation for message writing.
boolean	isEmbedded()	Determines if this Cell Represents an embedded object.
long	longValue()	Gets the long value of this Blob if the length is exactly 8 bytes, otherwise throws an Exception
abstract ABlob	slice(long start, long length)	Gets a contiguous slice of this blob, as a new Blob.
abstract Blob	toFlatBlob()	Converts this object to a flat array-backed Blob instance.
long	toLong()	Converts this Blob to the corresponding long value.
int	writeToBuffer(byte[] bs, int pos)	Writes the raw byte contents of this blob to a byte array
ByteBuffer	writeToBuffer(ByteBuffer bb)	Writes the raw byte contents of this Blob to a ByteBuffer.

Methods inherited from class convex.core.data.ABlob

compareTo, computeHash, empty, encodeRaw, encodeRawData, equals, equalsBytes, get, getBytes, getBytes, getContentHash, getElementRef, getHexDigit, getType, hashCode, hexEquals, hexEquals, hexLength, isCVMValue, isRegularBlob, print, slice, toByteBuffer, toCanonical, toCVMString, toHexString, toHexString, toHexString, updateDigest, validate, validateCell

Methods inherited from class convex.core.data.ACountable

isEmpty, size

Methods inherited from class convex.core.data.ACell

announce, announce, attachMemorySize, attachRef, cachedEncoding, cachedHash, createAnnounced, createEncoding, createPersisted, createPersisted, encode, equals, getCanonical, getChildRefs, getEncoding, getEncodingLength, getHash, getMemorySize, getRef, getRef, isCompletelyEncoded, mark, mark, toString, updateRefs, write

Methods inherited from class convex.core.data.AObject

attachEncoding, print, print

Methods inherited from class java.lang.Object

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

Methods inherited from interface convex.core.data.IWriteable

estimatedEncodingSize

Field Details

LENGTH

protected static final long LENGTH

See Also:

Constant Field Values

value

protected final long value

Constructor Details

ALongBlob

protected ALongBlob(long value)

Method Details

count

public final long count()

Description copied from class: ABlob

Gets the length of this Blob

Specified by:

count in class ABlob

Returns:

The length in bytes of this data object

createRef

protected <R extends ACell> Ref<R> createRef()

Description copied from class: ACell

Creates a new Ref for this Cell

Overrides:

createRef in class ACell

Type Parameters:

R - Type of Cell

Returns:

New Ref instance

appendHexString

public void appendHexString(BlobBuilder sb,
 int length)

Description copied from class: ABlob

Append hex string up to the given length (a multiple of two)

Specified by:

appendHexString in class ABlob

slice

public abstract ABlob slice(long start,
 long length)

Description copied from class: ABlob

Gets a contiguous slice of this blob, as a new Blob. Shares underlying backing data where possible

Specified by:

slice in class ABlob

Parameters:

start - Start position for the created slice

length - Length of the slice

Returns:

A blob of the specified length, representing a slice of this blob.

toFlatBlob

public abstract Blob toFlatBlob()

Description copied from class: ABlob

Converts this object to a flat array-backed Blob instance. Warning: might be O(n) in size of Blob, may not be canonical etc.

Specified by:

toFlatBlob in class ABlob

Returns:

A Blob instance containing the same data as this Blob.

commonHexPrefixLength

public long commonHexPrefixLength(ABlob b)

Description copied from class: ABlob

Computes the length of the longest common hex prefix between two blobs

Specified by:

commonHexPrefixLength in class ABlob

Parameters:

b - Blob to compare with

Returns:

The length of the longest common prefix in hex digits

byteAt

public final byte byteAt(long i)

Description copied from class: ABlob

Gets the byte at the specified position in this blob

Overrides:

byteAt in class ABlob

Parameters:

i - Index of the byte to get

Returns:

The byte at the specified position

getUnchecked

public final byte getUnchecked(long i)

Description copied from class: ABlob

Gets the byte at the specified position in this data object, without bounds checking. Only safe if index is known to be in bounds, otherwise result is undefined.

Specified by:

getUnchecked in class ABlob

Parameters:

i - Index of the byte to get

Returns:

The byte at the specified position

append

public final ABlob append(ABlob d)

Description copied from class: ABlob

Append an additional Blob to this, creating a new Blob as needed. New Blob will be canonical.

Specified by:

append in class ABlob

Parameters:

d - Blob to append

Returns:

A new Blob, containing the additional data appended to this blob.

equals

public abstract boolean equals(ABlob o)

Description copied from class: ABlob

Determines if this Blob is equal to another Blob. Blobs are defined to be equal if they have the same on-chain representation, i.e. if and only if all of the following are true: - Blob is of the same general type - Blobs are of the same length - All byte values are equal

Specified by:

equals in class ABlob

Parameters:

o - Blob to compare with

Returns:

true if Blobs are equal, false otherwise

writeToBuffer

public final ByteBuffer writeToBuffer(ByteBuffer bb)

Description copied from class: ABlob

Writes the raw byte contents of this Blob to a ByteBuffer. May be big!

Specified by:

writeToBuffer in class ABlob

Parameters:

bb - ByteBuffer to write to

Returns:

The passed ByteBuffer, after writing byte content

writeToBuffer

public final int writeToBuffer(byte[] bs,
 int pos)

Description copied from class: ABlob

Writes the raw byte contents of this blob to a byte array

Specified by:

writeToBuffer in class ABlob

Parameters:

bs - Byte array to write to

pos - Starting position in byte array to write to

Returns:

The position in the array after writing

getChunk

public final Blob getChunk(long i)

Description copied from class: ABlob

Gets a chunk of this Blob, as a canonical Blob up to the maximum chunk size. Returns empty Blob if and only if referencing the end of a Blob with fully packed chunks

Specified by:

getChunk in class ABlob

Parameters:

i - Index of chunk

Returns:

A Blob containing the specified chunk data.

getByteBuffer

public final ByteBuffer getByteBuffer()

Description copied from class: ABlob

Gets a byte buffer containing this Blob's data. Will have remaining bytes equal to this Blob's size.

Specified by:

getByteBuffer in class ABlob

Returns:

A ByteBuffer containing the Blob's data.

calcMemorySize

protected final long calcMemorySize()

Description copied from class: ACell

Calculates the Memory Size for this Cell. Requires any child Refs to be either Direct or of persisted status at minimum, or you might get a MissingDataException

Overrides:

calcMemorySize in class ACell

Returns:

Memory Size of this Cell

hexMatchLength

public long hexMatchLength(ABlob b,
 long start,
 long length)

Description copied from class: ABlob

Returns the number of matching hex digits in the given hex range of another Blob. Assumes range is valid for both blobs. Returns length if this Blob is exactly equal to the specified hex range.

Specified by:

hexMatchLength in class ABlob

Parameters:

b - Blob to compare with

start - Start position (in hex digits)

length - Length to compare (in hex digits)

Returns:

The number of matching hex characters

toLong

public final long toLong()

Description copied from class: ABlob

Converts this Blob to the corresponding long value. Assumes big-endian format, as if the entire blob is interpreted as a big integer. Higher bytes outside the Long range will be ignored.

Specified by:

toLong in class ABlob

Returns:

long value of this blob

longValue

public long longValue()

Description copied from class: ABlob

Gets the long value of this Blob if the length is exactly 8 bytes, otherwise throws an Exception

Specified by:

longValue in class ABlob

Returns:

The long value represented by the Blob

equalsBytes

public final boolean equalsBytes(ABlob b)

Description copied from class: ABlob

Tests if this Blob has exactly the same bytes as another Blob

Specified by:

equalsBytes in class ABlob

Parameters:

b - Blob to compare with

Returns:

True if byte content is exactly equal, false otherwise

getTag

public abstract byte getTag()

Description copied from class: ACell

Gets the tag byte for this cell. The tag byte is always written as the first byte of the Cell's Encoding

Specified by:

getTag in class ACell

Returns:

Tag byte for this Cell

isCanonical

public boolean isCanonical()

Description copied from class: ACell

Returns true if this Cell is in a canonical representation for message writing. Non-canonical objects may be used on a temporary internal basis, they must always be converted to canonical representations for external use (e.g. Encoding).

Specified by:

isCanonical in class ACell

Returns:

true if the object is in canonical format, false otherwise

getRefCount

public final int getRefCount()

Description copied from class: ACell

Gets the number of Refs contained within this Cell. This number is final / immutable for any given instance and is defined by the Cell encoding rules. Contained Refs may be either external or embedded.

Specified by:

getRefCount in class ACell

Returns:

The number of Refs in this Cell

isEmbedded

public final boolean isEmbedded()

Description copied from class: ACell

Determines if this Cell Represents an embedded object. Embedded objects are encoded directly into the encoding of the containing Cell (avoiding the need for a hashed reference). Subclasses should override this if they have a cheap O(1) way to determine if they are embedded or otherwise.

Overrides:

isEmbedded in class ACell

Returns:

true if Cell is embedded, false otherwise