Package org.apache.tools.zip
Class ZipEightByteInteger
- java.lang.Object
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- org.apache.tools.zip.ZipEightByteInteger
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public final class ZipEightByteInteger extends java.lang.ObjectUtility class that represents an eight byte integer with conversion rules for the big endian byte order of ZIP files.
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Field Summary
Fields Modifier and Type Field Description static ZipEightByteIntegerZERO
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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(java.math.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 booleanequals(java.lang.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(java.math.BigInteger value)Get value as eight bytes in big endian byte order.longgetLongValue()Get value as Java long.static longgetLongValue(byte[] bytes)Helper method to get the value as a Java long from an eight-byte arraystatic longgetLongValue(byte[] bytes, int offset)Helper method to get the value as a Java long from eight bytes starting at given array offsetjava.math.BigIntegergetValue()Get value as Java long.static java.math.BigIntegergetValue(byte[] bytes)Helper method to get the value as a Java long from an eight-byte arraystatic java.math.BigIntegergetValue(byte[] bytes, int offset)Helper method to get the value as a Java BigInteger from eight bytes starting at given array offsetinthashCode()Override to make two instances with same value equal.java.lang.StringtoString()
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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(java.math.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 java.math.BigInteger getValue()
Get value as Java long.- Returns:
- value as a long
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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(java.math.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 java.math.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 java.math.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(java.lang.Object o)
Override to make two instances with same value equal.- Overrides:
equalsin classjava.lang.Object- Parameters:
o- an object to compare- Returns:
- true if the objects are equal
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hashCode
public int hashCode()
Override to make two instances with same value equal.- Overrides:
hashCodein classjava.lang.Object- Returns:
- the hashCode of the value stored in the ZipEightByteInteger
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toString
public java.lang.String toString()
- Overrides:
toStringin classjava.lang.Object
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