Wrapper for the pnames.icu binary data file. This data file is imported from icu4c. It contains property and property value aliases from the UCD files PropertyAliases.txt and PropertyValueAliases.txt. The file is built by the icu4c tool genpname. It must be an ASCII big-endian file to be usable in icu4j. This class performs two functions. (1) It can import the flat binary data into usable objects. (2) It provides an API to access the tree of objects. Needless to say, this class is tightly coupled to the binary format of icu4c's pnames.icu file. Each time a UPropertyAliases is constructed, the pnames.icu file is read, parsed, and data structures assembled. Clients should create one singleton instance and cache it.

Nested and Inner Type Summary

Modifier and Type	Class and Description
private static class	UPropertyAliases.IsAcceptable

Field Summary

Modifier and Type	Field and Description
private byte[]	bytesTries
private static final int	DATA_FORMAT
public static final UPropertyAliases	INSTANCE
private static final UPropertyAliases.IsAcceptable	IS_ACCEPTABLE
private static final int	IX_BYTE_TRIES_OFFSET
private static final int	IX_NAME_GROUPS_OFFSET
private static final int	IX_RESERVED3_OFFSET
private static final int	IX_VALUE_MAPS_OFFSET
private String	nameGroups
private int[]	valueMaps

Constructor Summary

Access	Constructor and Description
private	UPropertyAliases()

Method Summary

Modifier and Type	Method and Description
private static int	asciiToLowercase(int c)
public static int	compare(String stra, String strb) Compare two property names, returning <0, 0, or >0.
private boolean	containsName(BytesTrie trie, CharSequence name)
private int	findProperty(int property)
private int	findPropertyValueNameGroup(int valueMapIndex, int value)
private String	getName(int nameGroupsIndex, int nameIndex)
public int	getPropertyEnum(CharSequence alias) Returns a property enum given one of its property names.
public String	getPropertyName(int property, int nameChoice) Returns a property name given a property enum.
private int	getPropertyOrValueEnum(int bytesTrieOffset, CharSequence alias)
public int	getPropertyValueEnum(int property, CharSequence alias) Returns a value enum given a property enum and one of its value names.
public int	Returns: value enum, or UProperty.UNDEFINED if not defined for that property getPropertyValueEnumNoThrow(int property, CharSequence alias) Returns a value enum given a property enum and one of its value names.
public String	getPropertyValueName(int property, int value, int nameChoice) Returns a value name given a property enum and a value enum.
private void	load(ByteBuffer bytes)

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Field Detail

bytesTries	back to summary
private byte[] bytesTries

DATA_FORMAT	back to summary
private static final int DATA_FORMAT

INSTANCE	back to summary
public static final UPropertyAliases INSTANCE

IS_ACCEPTABLE	back to summary
private static final UPropertyAliases.IsAcceptable IS_ACCEPTABLE

IX_BYTE_TRIES_OFFSET	back to summary
private static final int IX_BYTE_TRIES_OFFSET

IX_NAME_GROUPS_OFFSET	back to summary
private static final int IX_NAME_GROUPS_OFFSET

IX_RESERVED3_OFFSET	back to summary
private static final int IX_RESERVED3_OFFSET

IX_VALUE_MAPS_OFFSET	back to summary
private static final int IX_VALUE_MAPS_OFFSET

nameGroups	back to summary
private String nameGroups

valueMaps	back to summary
private int[] valueMaps

Constructor Detail

UPropertyAliases	back to summary
private UPropertyAliases() throws IOException

Method Detail

asciiToLowercase	back to summary
private static int asciiToLowercase(int c)

compare	back to summary
public static int compare(String stra, String strb) Compare two property names, returning <0, 0, or >0. The comparison is that described as "loose" matching in the Property*Aliases.txt files.

containsName	back to summary
private boolean containsName(BytesTrie trie, CharSequence name)

findProperty	back to summary
private int findProperty(int property)

findPropertyValueNameGroup	back to summary
private int findPropertyValueNameGroup(int valueMapIndex, int value)

getName	back to summary
private String getName(int nameGroupsIndex, int nameIndex)

getPropertyEnum	back to summary
public int getPropertyEnum(CharSequence alias) Returns a property enum given one of its property names. If the property name is not known, this method returns UProperty.UNDEFINED.

getPropertyName	back to summary
public String getPropertyName(int property, int nameChoice) Returns a property name given a property enum. Multiple names may be available for each property; the nameChoice selects among them.

getPropertyOrValueEnum	back to summary
private int getPropertyOrValueEnum(int bytesTrieOffset, CharSequence alias)

getPropertyValueEnum	back to summary
public int getPropertyValueEnum(int property, CharSequence alias) Returns a value enum given a property enum and one of its value names.

getPropertyValueEnumNoThrow	back to summary
public int getPropertyValueEnumNoThrow(int property, CharSequence alias) Returns a value enum given a property enum and one of its value names. Does not throw. Returns:int value enum, or UProperty.UNDEFINED if not defined for that property

getPropertyValueEnumNoThrow

back to summary

public int getPropertyValueEnumNoThrow(int property, CharSequence alias)

Returns a value enum given a property enum and one of its value names. Does not throw.

Returns:int: value enum, or UProperty.UNDEFINED if not defined for that property

getPropertyValueName	back to summary
public String getPropertyValueName(int property, int value, int nameChoice) Returns a value name given a property enum and a value enum. Multiple names may be available for each value; the nameChoice selects among them.

load	back to summary
private void load(ByteBuffer bytes) throws IOException

com.ibm.icu.impl back to summary

private final Class UPropertyAliases.IsAcceptable

Class Inheritance

extends Object
implements Authenticate

java.lang.Object
com.ibm.icu.impl.UPropertyAliases.IsAcceptable

All Implemented Interfaces

com.ibm.icu.impl.ICUBinary.Authenticate

Constructor Summary

Access	Constructor and Description
private	IsAcceptable()

Method Summary

Modifier and Type	Method and Description
public boolean	isDataVersionAcceptable(byte[] version of the current data version) Implements com.ibm.icu.impl.ICUBinary.Authenticate.isDataVersionAcceptable. Method used in ICUBinary.readHeader() to provide data format authentication.

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Constructor Detail

IsAcceptable	back to summary
private IsAcceptable()

Method Detail

isDataVersionAcceptable	back to summary
public boolean isDataVersionAcceptable(byte[] version) Implements com.ibm.icu.impl.ICUBinary.Authenticate.isDataVersionAcceptable. Doc from com.ibm.icu.impl.ICUBinary.Authenticate.isDataVersionAcceptable. Method used in ICUBinary.readHeader() to provide data format authentication. Parameters version:byte[] version of the current data Returns:boolean true if dataformat is an acceptable version, false otherwise Annotations @Override

isDataVersionAcceptable

back to summary

public boolean isDataVersionAcceptable(byte[] version)

Implements com.ibm.icu.impl.ICUBinary.Authenticate.isDataVersionAcceptable.

Doc from com.ibm.icu.impl.ICUBinary.Authenticate.isDataVersionAcceptable.

Method used in ICUBinary.readHeader() to provide data format authentication.

Parameters