Hashable & Comparable

gistfile1.java

static class WordToName implements Comparable<WordToName> {
	private String word;
	private List<String> docNames;

	public WordToName(String word) {
		this.word = word;
		this.docNames = new ArrayList<String>();
	}

	@Override
	public int compareTo(WordToName wtn) {
		Integer wtnSize = wtn.getDocNames().size();
		Integer thisSize = this.getDocNames().size();
		return wtnSize.compareTo(thisSize);
	}

	@Override
	public int hashCode() {
		return this.word.hashCode();
	}

	public boolean equals(Object obj) {
		if (!(obj instanceof WordToName))
			return false;
		WordToName wtn = (WordToName) obj;
		return this.word.equals(wtn.getWord());
	}

	public String getWord() {
		return word;
	}

	public List<String> getDocNames() {
		return docNames;
	}

	public void addDocName(String docName) {
		this.docNames.add(docName);
	}

}