DataWord (troncli 1.5.1 API)

java.lang.Object
- org.tron.common.utils.DataWord

All Implemented Interfaces:

Comparable<DataWord>
```
public class DataWord
extends Object
implements Comparable<DataWord>
```
DataWord is the 32-byte array representation of a 256-bit number Calculations can be done on this word with other DataWords

Since:

01.06.2014

Author:

Roman Mandeleil

Field Summary

Fields
Modifier and Type Field and Description

static BigInteger _2_256

static BigInteger MAX_VALUE

static DataWord ZERO

static DataWord ZERO_EMPTY_ARRAY

Fields
Modifier and Type	Field and Description
`static BigInteger`	`_2_256`
`static BigInteger`	`MAX_VALUE`
`static DataWord`	`ZERO`
`static DataWord`	`ZERO_EMPTY_ARRAY`

Constructor Summary

Constructors
Constructor and Description
`DataWord()`
`DataWord(byte[] data)`
`DataWord(ByteArrayWrapper wrappedData)`
`DataWord(int num)`
`DataWord(long num)`
`DataWord(String data)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`add(DataWord word)`
`void`	`add2(DataWord word)`
`void`	`addmod(DataWord word1, DataWord word2)`
`DataWord`	`and(DataWord w2)`
`String`	`asString()`
`String`	`bigIntValue()`
`void`	`bnot()`
`int`	`bytesOccupied()`
`DataWord`	`clone()`
`int`	`compareTo(DataWord o)`
`void`	`div(DataWord word)`
`boolean`	`equals(Object o)`
`void`	`exp(DataWord word)`
`byte[]`	`getData()`
`byte[]`	`getLast20Bytes()`
`byte[]`	`getNoLeadZeroesData()`
`int`	`hashCode()`
`int`	`intValue()` Converts this DataWord to an int, checking for lost information.
`int`	`intValueSafe()` In case of int overflow returns Integer.MAX_VALUE otherwise works as #intValue()
`boolean`	`isHex(String hex)`
`boolean`	`isNegative()`
`boolean`	`isZero()`
`long`	`longValue()` Converts this DataWord to a long, checking for lost information.
`long`	`longValueSafe()` In case of long overflow returns Long.MAX_VALUE otherwise works as #longValue()
`void`	`mod(DataWord word)`
`void`	`mul(DataWord word)`
`void`	`mulmod(DataWord word1, DataWord word2)`
`void`	`negate()`
`DataWord`	`or(DataWord w2)`
`void`	`sDiv(DataWord word)`
`String`	`shortHex()`
`void`	`signExtend(byte k)`
`void`	`sMod(DataWord word)`
`void`	`sub(DataWord word)`
`BigInteger`	`sValue()`
`String`	`toHexString()`
`String`	`toPrefixString()`
`String`	`toString()`
`BigInteger`	`value()`
`DataWord`	`xor(DataWord w2)`

Methods inherited from class java.lang.Object
finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

_2_256
```
public static final BigInteger _2_256
```

MAX_VALUE

public static final BigInteger MAX_VALUE

ZERO
```
public static final DataWord ZERO
```

ZERO_EMPTY_ARRAY

public static final DataWord ZERO_EMPTY_ARRAY

Constructor Detail

DataWord
```
public DataWord()
```

DataWord
```
public DataWord(int num)
```

DataWord
```
public DataWord(long num)
```

DataWord
```
public DataWord(String data)
```

DataWord

public DataWord(ByteArrayWrapper wrappedData)

DataWord
```
public DataWord(byte[] data)
```

Method Detail

getData
```
public byte[] getData()
```

getNoLeadZeroesData
```
public byte[] getNoLeadZeroesData()
```

getLast20Bytes
```
public byte[] getLast20Bytes()
```

value
```
public BigInteger value()
```

intValue
```
public int intValue()
```
Converts this DataWord to an int, checking for lost information. If this DataWord is out of the possible range for an int result then an ArithmeticException is thrown.

Returns:

this DataWord converted to an int.

Throws:

ArithmeticException - - if this will not fit in an int.

intValueSafe
```
public int intValueSafe()
```
In case of int overflow returns Integer.MAX_VALUE otherwise works as #intValue()

longValue
```
public long longValue()
```
Converts this DataWord to a long, checking for lost information. If this DataWord is out of the possible range for a long result then an ArithmeticException is thrown.

Returns:

this DataWord converted to a long.

Throws:

ArithmeticException - - if this will not fit in a long.

longValueSafe
```
public long longValueSafe()
```
In case of long overflow returns Long.MAX_VALUE otherwise works as #longValue()

sValue
```
public BigInteger sValue()
```

bigIntValue
```
public String bigIntValue()
```

isZero
```
public boolean isZero()
```

isNegative
```
public boolean isNegative()
```

and
```
public DataWord and(DataWord w2)
```

or
```
public DataWord or(DataWord w2)
```

xor
```
public DataWord xor(DataWord w2)
```

negate
```
public void negate()
```

bnot
```
public void bnot()
```

add
```
public void add(DataWord word)
```

add2
```
public void add2(DataWord word)
```

mul
```
public void mul(DataWord word)
```

div
```
public void div(DataWord word)
```

sDiv
```
public void sDiv(DataWord word)
```

sub
```
public void sub(DataWord word)
```

exp
```
public void exp(DataWord word)
```

mod
```
public void mod(DataWord word)
```

sMod
```
public void sMod(DataWord word)
```

addmod

public void addmod(DataWord word1,
                   DataWord word2)

mulmod

public void mulmod(DataWord word1,
                   DataWord word2)

toString
```
public String toString()
```
Overrides:

toString in class Object

toPrefixString
```
public String toPrefixString()
```

shortHex
```
public String shortHex()
```

clone
```
public DataWord clone()
```
Overrides:

clone in class Object

equals
```
public boolean equals(Object o)
```
Overrides:

equals in class Object

hashCode
```
public int hashCode()
```
Overrides:

hashCode in class Object

compareTo
```
public int compareTo(DataWord o)
```
Specified by:

compareTo in interface Comparable<DataWord>

signExtend
```
public void signExtend(byte k)
```

bytesOccupied
```
public int bytesOccupied()
```

isHex
```
public boolean isHex(String hex)
```

asString
```
public String asString()
```

toHexString
```
public String toHexString()
```

Class DataWord

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

_2_256

MAX_VALUE

ZERO

ZERO_EMPTY_ARRAY

Constructor Detail

DataWord

DataWord

DataWord

DataWord

DataWord

DataWord

Method Detail

getData

getNoLeadZeroesData

getLast20Bytes

value

intValue

intValueSafe

longValue

longValueSafe

sValue

bigIntValue

isZero

isNegative

and

or

xor

negate

bnot

add

add2

mul

div

sDiv

sub

exp

mod

sMod

addmod

mulmod

toString

toPrefixString

shortHex

clone

equals

hashCode

compareTo

signExtend

bytesOccupied

isHex

asString

toHexString