Class ZipEightByteInteger
- java.lang.Object
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- org.apache.commons.compress.archivers.zip.ZipEightByteInteger
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- All Implemented Interfaces:
Serializable
public final class ZipEightByteInteger extends Object implements Serializable
Utility class that represents an eight byte integer with conversion rules for the little endian byte order of ZIP files.- Since:
- 1.2
- See Also:
- Serialized Form
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Field Summary
Fields Modifier and Type Field Description static ZipEightByteInteger
ZERO
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Constructor Summary
Constructors Constructor Description ZipEightByteInteger(byte[] bytes)
Create instance from bytes.ZipEightByteInteger(byte[] bytes, int offset)
Create instance from the eight bytes starting at offset.ZipEightByteInteger(long value)
Create instance from a number.ZipEightByteInteger(BigInteger value)
Create instance from a number.
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description boolean
equals(Object o)
Override to make two instances with same value equal.byte[]
getBytes()
Get value as eight bytes in big endian byte order.static byte[]
getBytes(long value)
Get value as eight bytes in big endian byte order.static byte[]
getBytes(BigInteger value)
Get value as eight bytes in big endian byte order.long
getLongValue()
Get value as Java long.static long
getLongValue(byte[] bytes)
Helper method to get the value as a Java long from an eight-byte arraystatic long
getLongValue(byte[] bytes, int offset)
Helper method to get the value as a Java long from eight bytes starting at given array offsetBigInteger
getValue()
Get value as Java BigInteger.static BigInteger
getValue(byte[] bytes)
Helper method to get the value as a Java long from an eight-byte arraystatic BigInteger
getValue(byte[] bytes, int offset)
Helper method to get the value as a Java BigInteger from eight bytes starting at given array offsetint
hashCode()
Override to make two instances with same value equal.String
toString()
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Field Detail
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ZERO
public static final ZipEightByteInteger ZERO
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Constructor Detail
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ZipEightByteInteger
public ZipEightByteInteger(long value)
Create instance from a number.- Parameters:
value
- the long to store as a ZipEightByteInteger
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ZipEightByteInteger
public ZipEightByteInteger(BigInteger value)
Create instance from a number.- Parameters:
value
- the BigInteger to store as a ZipEightByteInteger
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ZipEightByteInteger
public ZipEightByteInteger(byte[] bytes)
Create instance from bytes.- Parameters:
bytes
- the bytes to store as a ZipEightByteInteger
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ZipEightByteInteger
public ZipEightByteInteger(byte[] bytes, int offset)
Create instance from the eight bytes starting at offset.- Parameters:
bytes
- the bytes to store as a ZipEightByteIntegeroffset
- the offset to start
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Method Detail
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getBytes
public byte[] getBytes()
Get value as eight bytes in big endian byte order.- Returns:
- value as eight bytes in big endian order
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getLongValue
public long getLongValue()
Get value as Java long.- Returns:
- value as a long
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getValue
public BigInteger getValue()
Get value as Java BigInteger.- Returns:
- value as a BigInteger
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getBytes
public static byte[] getBytes(long value)
Get value as eight bytes in big endian byte order.- Parameters:
value
- the value to convert- Returns:
- value as eight bytes in big endian byte order
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getBytes
public static byte[] getBytes(BigInteger value)
Get value as eight bytes in big endian byte order.- Parameters:
value
- the value to convert- Returns:
- value as eight bytes in big endian byte order
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getLongValue
public static long getLongValue(byte[] bytes, int offset)
Helper method to get the value as a Java long from eight bytes starting at given array offset- Parameters:
bytes
- the array of bytesoffset
- the offset to start- Returns:
- the corresponding Java long value
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getValue
public static BigInteger getValue(byte[] bytes, int offset)
Helper method to get the value as a Java BigInteger from eight bytes starting at given array offset- Parameters:
bytes
- the array of bytesoffset
- the offset to start- Returns:
- the corresponding Java BigInteger value
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getLongValue
public static long getLongValue(byte[] bytes)
Helper method to get the value as a Java long from an eight-byte array- Parameters:
bytes
- the array of bytes- Returns:
- the corresponding Java long value
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getValue
public static BigInteger getValue(byte[] bytes)
Helper method to get the value as a Java long from an eight-byte array- Parameters:
bytes
- the array of bytes- Returns:
- the corresponding Java BigInteger value
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equals
public boolean equals(Object o)
Override to make two instances with same value equal.
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hashCode
public int hashCode()
Override to make two instances with same value equal.
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