net.sf.eos.trie
Class XmlTrieLoader

java.lang.Object
  net.sf.eos.trie.AbstractTrieLoader<CharSequence,Set<CharSequence>>
      net.sf.eos.trie.XmlTrieLoader

All Implemented Interfaces:

TrieLoader<CharSequence,Set<CharSequence>>

public class XmlTrieLoader
extends AbstractTrieLoader<CharSequence,Set<CharSequence>>

The builder creates a trie from a simple XML file. The file must be like the following DTD:

 <!ELEMENT trie  (entry*)     >
 <!ELEMENT entry (key, value) >
 <!ELEMENT key   (#PCDATA)    >
 <!ELEMENT value (#PCDATA)    >

The builder doesn't validate validates the XML structure.

If a key is twice in the XML structure the builder adds it to the value Collection.

Author:

Sascha Kohlmann

Field Summary

Fields inherited from class net.sf.eos.trie.AbstractTrieLoader

TRIE_LOADER_IMPL_CONFIG_NAME

Constructor Summary

XmlTrieLoader()

Method Summary

TextBuilder	getTextBuilder() Returns a setted builder.
ResettableTokenizer	getTokenizer()
void	loadTrie(InputStream trieData, Trie<CharSequence,Set<CharSequence>> trie) Creates a Trie from the InputStream.
protected CharSequence	rebuildValue(CharSequence value) Rebuilds a sequence of chars if the loader has a setted setTokenizer(ResettableTokenizer) and a setted setTextBuilder(TextBuilder).
void	setTextBuilder(TextBuilder builder) Sets a builder.
void	setTokenizer(ResettableTokenizer tokenizer)

Methods inherited from class net.sf.eos.trie.AbstractTrieLoader

newInstance, newInstance

Methods inherited from class java.lang.Object

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

Constructor Detail

XmlTrieLoader

public XmlTrieLoader()

Method Detail

loadTrie

public void loadTrie(InputStream trieData,
                     Trie<CharSequence,Set<CharSequence>> trie)
              throws Exception

Creates a Trie from the InputStream.

Specified by:

loadTrie in interface TrieLoader<CharSequence,Set<CharSequence>>

Specified by:

loadTrie in class AbstractTrieLoader<CharSequence,Set<CharSequence>>

Parameters:

trieData - stream pointing to the trie structure data.

trie - the trie to fill with the trieData

Throws:

Exception - if the builder is unable to create the trie.

getTokenizer

public ResettableTokenizer getTokenizer()

Returns:

the tokenizer

setTokenizer

public void setTokenizer(ResettableTokenizer tokenizer)

Parameters:

tokenizer - the tokenizer to set

setTextBuilder

public void setTextBuilder(TextBuilder builder)

Sets a builder. The implementation has default builder of instance TextBuilder.SPACE_BUILDER setted at construction time.

Parameters:

builder - a builder to set or null.

getTextBuilder

public TextBuilder getTextBuilder()

Returns a setted builder.

Returns:

a setted builder or null.

rebuildValue

protected CharSequence rebuildValue(CharSequence value)

Rebuilds a sequence of chars if the loader has a setted setTokenizer(ResettableTokenizer) and a setted setTextBuilder(TextBuilder).

Parameters:

value - the value to rebuild.

Returns:

a rebuilded character sequence.