Package org.apache.tools.zip
Class GeneralPurposeBit
- java.lang.Object
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- org.apache.tools.zip.GeneralPurposeBit
 
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- All Implemented Interfaces:
- java.lang.Cloneable
 
 public final class GeneralPurposeBit extends java.lang.Object implements java.lang.CloneableParser/encoder for the "general purpose bit" field in ZIP's local file and central directory headers.- Since:
- Ant 1.9.0
 
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Field SummaryFields Modifier and Type Field Description static intUFT8_NAMES_FLAGIndicates that filenames are written in utf-8.
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Constructor SummaryConstructors Constructor Description GeneralPurposeBit()
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Method SummaryModifier and Type Method Description java.lang.Objectclone()byte[]encode()Encodes the set bits in a form suitable for ZIP archives.voidencode(byte[] buf, int offset)Encodes the set bits in a form suitable for ZIP archives.booleanequals(java.lang.Object o)inthashCode()static GeneralPurposeBitparse(byte[] data, int offset)Parses the supported flags from the given archive data.voiduseDataDescriptor(boolean b)whether the current entry will use the data descriptor to store CRC and size informationvoiduseEncryption(boolean b)whether the current entry will be encryptedbooleanusesDataDescriptor()whether the current entry uses the data descriptor to store CRC and size informationbooleanusesEncryption()whether the current entry is encryptedbooleanusesStrongEncryption()whether the current entry is encrypted using strong encryptionvoiduseStrongEncryption(boolean b)whether the current entry will be encrypted using strong encryptionbooleanusesUTF8ForNames()whether the current entry uses UTF8 for file name and comment.voiduseUTF8ForNames(boolean b)whether the current entry will use UTF8 for file name and comment.
 
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Field Detail- 
UFT8_NAMES_FLAGpublic static final int UFT8_NAMES_FLAG Indicates that filenames are written in utf-8.The only reason this is public is that ZipOutputStream.EFS_FLAGwas public in several versions of Apache Ant and we needed a substitute for it.- See Also:
- Constant Field Values
 
 
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Method Detail- 
usesUTF8ForNamespublic boolean usesUTF8ForNames() whether the current entry uses UTF8 for file name and comment.- Returns:
- boolean
 
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useUTF8ForNamespublic void useUTF8ForNames(boolean b) whether the current entry will use UTF8 for file name and comment.- Parameters:
- b- boolean
 
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usesDataDescriptorpublic boolean usesDataDescriptor() whether the current entry uses the data descriptor to store CRC and size information- Returns:
- boolean
 
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useDataDescriptorpublic void useDataDescriptor(boolean b) whether the current entry will use the data descriptor to store CRC and size information- Parameters:
- b- boolean
 
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usesEncryptionpublic boolean usesEncryption() whether the current entry is encrypted- Returns:
- boolean
 
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useEncryptionpublic void useEncryption(boolean b) whether the current entry will be encrypted- Parameters:
- b- boolean
 
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usesStrongEncryptionpublic boolean usesStrongEncryption() whether the current entry is encrypted using strong encryption- Returns:
- boolean
 
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useStrongEncryptionpublic void useStrongEncryption(boolean b) whether the current entry will be encrypted using strong encryption- Parameters:
- b- boolean
 
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encodepublic byte[] encode() Encodes the set bits in a form suitable for ZIP archives.- Returns:
- byte[]
 
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encodepublic void encode(byte[] buf, int offset)Encodes the set bits in a form suitable for ZIP archives.- Parameters:
- buf- the output buffer
- offset- The offset within the output buffer of the first byte to be written. must be non-negative and no larger than- buf.length-2
 
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parsepublic static GeneralPurposeBit parse(byte[] data, int offset) Parses the supported flags from the given archive data.- Parameters:
- data- local file header or a central directory entry.
- offset- offset at which the general purpose bit starts
- Returns:
- GeneralPurposeBit
 
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hashCodepublic int hashCode() - Overrides:
- hashCodein class- java.lang.Object
 
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equalspublic boolean equals(java.lang.Object o) - Overrides:
- equalsin class- java.lang.Object
 
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clonepublic java.lang.Object clone() - Overrides:
- clonein class- java.lang.Object
 
 
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