Package convex.core.data.impl

Class ZeroBlob

java.lang.Object

convex.core.data.AObject

convex.core.data.ACell

convex.core.data.ACountable<CVMLong>

convex.core.data.ABlobLike<CVMLong>

convex.core.data.ABlob

convex.core.data.ADerivedBlob

convex.core.data.impl.ZeroBlob

All Implemented Interfaces:

IValidated, IWriteable, Comparable<ABlobLike<?>>

public class ZeroBlob
extends ADerivedBlob

Blob filled with all zeros. Useful to avoid allocating lots of empty arrays, potentially.

Field Summary

Fields

Modifier and Type	Field	Description
static final ZeroBlob	EMPTY

Fields inherited from class convex.core.data.ABlob

count

Fields inherited from class convex.core.data.ACell

cachedRef, memorySize

Fields inherited from class convex.core.data.AObject

encoding

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	ZeroBlob(long count)

Method Summary

Modifier and Type	Method	Description
ABlob	append(ABlob other)	Append an additional Blob to this, creating a new Blob as needed.
byte	byteAtUnchecked(long i)	Gets the byte at the specified position in this data object, possibly skipping bounds checking.
static ZeroBlob	create(long count)
int	getBytes(byte[] dest, int destOffset)	Copies the bytes from this instance to a given destination array
ZeroBlob	sliceImpl(long start, long end)	Constructs a slice of this Blob as the same type.

Methods inherited from class convex.core.data.ADerivedBlob

encodeRaw, equals, equalsBytes, equalsBytes, estimatedEncodingSize, getByteBuffer, getChunk, getRefCount, hexMatch, isCanonical, isFullyPacked, longValue, read, slice, toCanonical, toFlatBlob, updateDigest

Methods inherited from class convex.core.data.ABlob

byteAt, compareTo, computeHash, count, empty, encode, equals, get, getContentHash, getElementRef, getTag, getType, hashCode, isChunkPacked, isCVMValue, print, read, replaceSlice, shortAt, size, slice, toBlob, toByteBuffer, validate, validateCell

Methods inherited from class convex.core.data.ABlobLike

appendHex, getBytes, getHexDigit, hexEquals, hexLength, hexMatch, isDataValue, toHexString, toHexString

Methods inherited from class convex.core.data.ACountable

isEmpty

Methods inherited from class convex.core.data.ACell

attachMemorySize, attachRef, cachedEncoding, cachedHash, calcMemorySize, createEncoding, createRef, equals, genericEquals, getCanonical, getChildRefs, getEncoding, getEncodingLength, getHash, getMemorySize, getMemorySize, getRef, getRef, isEmbedded, toCVMString, toString, updateRefs

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

Field Details

EMPTY

public static final ZeroBlob EMPTY

Constructor Details

ZeroBlob

protected ZeroBlob(long count)

Method Details

append

public ABlob append(ABlob other)

Description copied from class: ABlob

Append an additional Blob to this, creating a new Blob as needed.

Overrides:

append in class ADerivedBlob

Parameters:

other - Blob to append

Returns:

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

sliceImpl

public ZeroBlob sliceImpl(long start,
 long end)

Description copied from class: ADerivedBlob

Constructs a slice of this Blob as the same type. Assumes a new slice must be constructed and that bounds have already been checked.

Specified by:

sliceImpl in class ADerivedBlob

Parameters:

start - Start of slice

end - End of slice

Returns:

New slice instance

create

public static ZeroBlob create(long count)

getBytes

public int getBytes(byte[] dest,
 int destOffset)

Description copied from class: ABlobLike

Copies the bytes from this instance to a given destination array

Specified by:

getBytes in class ADerivedBlob

Parameters:

dest - Destination array

destOffset - Offset into destination array

Returns:

End position in destination array after writing

byteAtUnchecked

public byte byteAtUnchecked(long i)

Description copied from class: ABlobLike

Gets the byte at the specified position in this data object, possibly skipping bounds checking. Only safe if index is known to be in bounds, otherwise result is undefined.

Overrides:

byteAtUnchecked in class ABlobLike<CVMLong>

Parameters:

i - Index of the byte to get

Returns:

The byte at the specified position