org.graalvm.shadowed.com.ibm.icu.util

Class BytesTrieBuilder

java.lang.Object

org.graalvm.shadowed.com.ibm.icu.util.StringTrieBuilder

org.graalvm.shadowed.com.ibm.icu.util.BytesTrieBuilder

public final class BytesTrieBuilder
extends StringTrieBuilder

Builder class for BytesTrie.

This class is not intended for public subclassing.

Nested Class Summary

Nested classes/interfaces inherited from class org.graalvm.shadowed.com.ibm.icu.util.StringTrieBuilder

StringTrieBuilder.Option

Constructor Summary

Constructors

Constructor and Description
BytesTrieBuilder() Constructs an empty builder.

Method Summary

Modifier and Type	Method and Description
BytesTrieBuilder	add(byte[] sequence, int length, int value) Adds a (byte sequence, value) pair.
BytesTrie	build(StringTrieBuilder.Option buildOption) Builds a BytesTrie for the add()ed data.
ByteBuffer	buildByteBuffer(StringTrieBuilder.Option buildOption) Builds a BytesTrie for the add()ed data and byte-serializes it.
BytesTrieBuilder	clear() Removes all (byte sequence, value) pairs.

Methods inherited from class java.lang.Object

clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

BytesTrieBuilder

public BytesTrieBuilder()

Constructs an empty builder.

Method Detail

add

public BytesTrieBuilder add(byte[] sequence,
                            int length,
                            int value)

Adds a (byte sequence, value) pair. The byte sequence must be unique. Bytes 0..length-1 will be copied; the builder does not keep a reference to the input array.

Parameters:

sequence - The array that contains the byte sequence, starting at index 0.

length - The length of the byte sequence.

value - The value associated with this byte sequence.

Returns:

this

build

public BytesTrie build(StringTrieBuilder.Option buildOption)

Builds a BytesTrie for the add()ed data. Once built, no further data can be add()ed until clear() is called.

A BytesTrie cannot be empty. At least one (byte sequence, value) pair must have been add()ed.

Multiple calls to build() or buildByteBuffer() return tries or buffers which share the builder's byte array, without rebuilding. The byte array must not be modified via the buildByteBuffer() result object. After clear() has been called, a new array will be used.

Parameters:

buildOption - Build option, see StringTrieBuilder.Option.

Returns:

A new BytesTrie for the add()ed data.

buildByteBuffer

public ByteBuffer buildByteBuffer(StringTrieBuilder.Option buildOption)

Builds a BytesTrie for the add()ed data and byte-serializes it. Once built, no further data can be add()ed until clear() is called.

A BytesTrie cannot be empty. At least one (byte sequence, value) pair must have been add()ed.

Multiple calls to build() or buildByteBuffer() return tries or buffers which share the builder's byte array, without rebuilding. Do not modify the bytes in the buffer! After clear() has been called, a new array will be used.

The serialized BytesTrie is accessible via the buffer's array()/arrayOffset()+position() or remaining()/get(byte[]) etc.

Parameters:

buildOption - Build option, see StringTrieBuilder.Option.

Returns:

A ByteBuffer with the byte-serialized BytesTrie for the add()ed data. The buffer is not read-only and array() can be called.

clear

public BytesTrieBuilder clear()

Removes all (byte sequence, value) pairs. New data can then be add()ed and a new trie can be built.

Returns:

this