src/main/java/org/lightcouch/CouchDbClientBase.java
public boolean contains(String id) { 
		assertNotEmpty(id, "id");
		HttpResponse response = null;
		try {
			response = head(buildUri(getDBUri()).pathEncoded(id).build());
		} catch (NoDocumentException e) {
			return false;
		} finally {
			close(response);
		}
		return true;
	}
public boolean contains(String id) { 
		assertNotEmpty(id, "id");
		HttpResponse response = null;
		try {
			response = head(buildUri(getDBUri()).pathEncoded(id).build());
		} catch (NoDocumentException e) {
			return false;
		} finally {
			close(response);
		}
		return true;
	}
Checks if a document exist in the database.
@param id The document _id field.
@return true If the document is found, false otherwise.