Class CharsTrieBuilder

java.lang.Object
com.ibm.icu.util.StringTrieBuilder
com.ibm.icu.util.CharsTrieBuilder
public final class CharsTrieBuilder extends StringTrieBuilder
Builder class for CharsTrie.

This class is not intended for public subclassing.

Author:
Markus W. Scherer
Status:
Stable ICU 4.8.

  • Constructor Details

    • CharsTrieBuilder

      public CharsTrieBuilder()
      Constructs an empty builder.
      Status:
      Stable ICU 4.8.

  • Method Details

    • add

      public CharsTrieBuilder add(CharSequence s, int value)
      Adds a (string, value) pair. The string must be unique. The string contents will be copied; the builder does not keep a reference to the input CharSequence.
      Parameters:
      s - The input string.
      value - The value associated with this char sequence.
      Returns:
      this
      Status:
      Stable ICU 4.8.

    • build

      public CharsTrie build(StringTrieBuilder.Option buildOption)
      Builds a CharsTrie for the add()ed data. Once built, no further data can be add()ed until clear() is called.

      A CharsTrie cannot be empty. At least one (string, value) pair must have been add()ed.

      Multiple calls to build() or buildCharSequence() return tries or sequences which share the builder's char array, without rebuilding. After clear() has been called, a new array will be used.

      Parameters:
      buildOption - Build option, see StringTrieBuilder.Option.
      Returns:
      A new CharsTrie for the add()ed data.
      Status:
      Stable ICU 4.8.

    • buildCharSequence

      public CharSequence buildCharSequence(StringTrieBuilder.Option buildOption)
      Builds a CharsTrie for the add()ed data and char-serializes it. Once built, no further data can be add()ed until clear() is called.

      A CharsTrie cannot be empty. At least one (string, value) pair must have been add()ed.

      Multiple calls to build() or buildCharSequence() return tries or sequences which share the builder's char array, without rebuilding. After clear() has been called, a new array will be used.

      Parameters:
      buildOption - Build option, see StringTrieBuilder.Option.
      Returns:
      A CharSequence with the char-serialized CharsTrie for the add()ed data.
      Status:
      Stable ICU 4.8.

    • clear

      public CharsTrieBuilder clear()
      Removes all (string, value) pairs. New data can then be add()ed and a new trie can be built.
      Returns:
      this
      Status:
      Stable ICU 4.8.

    • matchNodesCanHaveValues

      @Deprecated protected boolean matchNodesCanHaveValues()
      Deprecated.
      This API is ICU internal only.
      Specified by:
      matchNodesCanHaveValues in class StringTrieBuilder
      Status:
      Internal. This API is ICU internal only.

    • getMaxBranchLinearSubNodeLength

      @Deprecated protected int getMaxBranchLinearSubNodeLength()
      Deprecated.
      This API is ICU internal only.
      Specified by:
      getMaxBranchLinearSubNodeLength in class StringTrieBuilder
      Status:
      Internal. This API is ICU internal only.

    • getMinLinearMatch

      @Deprecated protected int getMinLinearMatch()
      Deprecated.
      This API is ICU internal only.
      Specified by:
      getMinLinearMatch in class StringTrieBuilder
      Status:
      Internal. This API is ICU internal only.

    • getMaxLinearMatchLength

      @Deprecated protected int getMaxLinearMatchLength()
      Deprecated.
      This API is ICU internal only.
      Specified by:
      getMaxLinearMatchLength in class StringTrieBuilder
      Status:
      Internal. This API is ICU internal only.

    • write

      @Deprecated protected int write(int unit)
      Deprecated.
      This API is ICU internal only.
      Specified by:
      write in class StringTrieBuilder
      Status:
      Internal. This API is ICU internal only.

    • write

      @Deprecated protected int write(int offset, int length)
      Deprecated.
      This API is ICU internal only.
      Specified by:
      write in class StringTrieBuilder
      Status:
      Internal. This API is ICU internal only.

    • writeValueAndFinal

      @Deprecated protected int writeValueAndFinal(int i, boolean isFinal)
      Deprecated.
      This API is ICU internal only.
      Specified by:
      writeValueAndFinal in class StringTrieBuilder
      Status:
      Internal. This API is ICU internal only.

    • writeValueAndType

      @Deprecated protected int writeValueAndType(boolean hasValue, int value, int node)
      Deprecated.
      This API is ICU internal only.
      Specified by:
      writeValueAndType in class StringTrieBuilder
      Status:
      Internal. This API is ICU internal only.

    • writeDeltaTo

      @Deprecated protected int writeDeltaTo(int jumpTarget)
      Deprecated.
      This API is ICU internal only.
      Specified by:
      writeDeltaTo in class StringTrieBuilder
      Status:
      Internal. This API is ICU internal only.