[Zope-CVS] CVS: Products/ZCTextIndex - ZCTextIndex.py:1.1.2.1

[Jeremy Hylton]

Update of /cvs-repository/Products/ZCTextIndex
In directory cvs.zope.org:/tmp/cvs-serv20856

Added Files:
      Tag: TextIndexDS9-branch
	ZCTextIndex.py 
Log Message:
Hook together the checked in components to create a simple text index.


=== Added File Products/ZCTextIndex/ZCTextIndex.py ===
from Products.ZCTextIndex.Index import Index
from Products.ZCTextIndex.QueryEngine import QueryEngine
from Products.ZCTextIndex.QueryParser import QueryParser

from Products.ZCTextIndex.tests.test_index import SimpleLexicon

from Products.PluginIndexes.common.PluggableIndex \
     import PluggableIndexInterface

import ZODB
from Persistence import Persistent

class ZCTextIndex(Persistent):
    __implements__ = PluggableIndexInterface

    def __init__(self, doc_attr="text"):
        self.engine = QueryEngine()
        self.index = Index(SimpleLexicon(), doc_attr)
        self.parser = QueryParser()

    def index_object(self, docid, obj, thresh=None):
        self.index.index_object(docid, obj, thresh)
        self._p_changed = 1 # XXX

    def unindex_object(self, docid):
        self.index.unindex_object(docid)
        self._p_changed = 1 # XXX

    def _apply_index(self, req):
        pass # XXX

    def query(self, query):
        # returns a mapping from docids to scores
        tree = self.parser.parseQuery(query)
        return self.engine.executeQuery(self.index, tree)