com.endeca.portal.mdex
Class MDEXUtil

java.lang.Object
  com.endeca.portal.mdex.MDEXUtil

public class MDEXUtil
extends java.lang.Object

Helper class containing useful methods to execute on an ENEQuery

Author:

dan

Constructor Summary

MDEXUtil()

Method Summary

static com.endeca.navigation.ENEQuery	copyQuery(com.endeca.navigation.ENEQuery previousQuery) This method takes an ENEQuery object and makes a copy of it.
static com.endeca.navigation.ENEQueryResults	execute(MDEXState mdexState, com.endeca.navigation.ENEQuery query)
static com.endeca.navigation.ENEQuery	fromJSONObject(org.json.JSONObject j) Creates a new ENEQuery object based on the contents of this JSON object.
static com.endeca.navigation.ENEQuery	fromJSONString(java.lang.String s) Creates a new ENEQuery object based on the contents of this JSON packet.
static int	hashCode(com.endeca.navigation.ENEQuery query) Returns a hashcode of the query, used to tersely identify the contents of the query.
static int	hashCode(java.lang.String jsonString) Currently this is just a wrapper of String.hashCode() - this method exists solely so we can override the hashcode implementation if we want to, and to allow calling ENEQueryUtils.hashCode() on a pre-existing jsonString.
static void	main(java.lang.String[] args)
static com.endeca.navigation.ENEQuery	tidyNavQuery(com.endeca.navigation.ENEQuery query) Cleans up and sanitizes a nav query; right now all it does is rewrite the query to include the root if there are otherwise no nav descriptors
static org.json.JSONObject	toJSONObject(com.endeca.navigation.ENEQuery query) Returns a JSONObject containing all pertinent query info
static java.lang.String	toJSONString(com.endeca.navigation.ENEQuery query) Returns a JSON string containing all pertinent query info

Methods inherited from class java.lang.Object

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

Constructor Detail

MDEXUtil

public MDEXUtil()

Method Detail

hashCode

public static int hashCode(com.endeca.navigation.ENEQuery query)
                    throws org.json.JSONException

Returns a hashcode of the query, used to tersely identify the contents of the query. The hashcode will be the same for two separate instances of a query as long as those queries have the same parameters.

Parameters:

query - the query to hash

Returns:

the hashcode

Throws:

org.json.JSONException

hashCode

public static int hashCode(java.lang.String jsonString)

Currently this is just a wrapper of String.hashCode() - this method exists solely so we can override the hashcode implementation if we want to, and to allow calling ENEQueryUtils.hashCode() on a pre-existing jsonString. This is useful in cases where a calling class wants to calculate the jsonString for a query and also calculate the hashcode, without having to re-calc the jsonString just to get the hashcode

Parameters:

jsonString - the (json) string to hash

Returns:

the hashcode

toJSONString

public static java.lang.String toJSONString(com.endeca.navigation.ENEQuery query)
                                     throws org.json.JSONException

Returns a JSON string containing all pertinent query info

Parameters:

query - the query to turn into a JSON string

Returns:

the JSON string representing the query

Throws:

org.json.JSONException

toJSONObject

public static org.json.JSONObject toJSONObject(com.endeca.navigation.ENEQuery query)
                                        throws org.json.JSONException

Returns a JSONObject containing all pertinent query info

Parameters:

query - the query to turn into a JSON object

Returns:

the JSON object representing the query

Throws:

org.json.JSONException

fromJSONString

public static com.endeca.navigation.ENEQuery fromJSONString(java.lang.String s)

Creates a new ENEQuery object based on the contents of this JSON packet.

Parameters:

s - the JSON packet to parse

Returns:

the ENEQuery

fromJSONObject

public static com.endeca.navigation.ENEQuery fromJSONObject(org.json.JSONObject j)

Creates a new ENEQuery object based on the contents of this JSON object. Returns null if it cannot parse the JSON Object.

Parameters:

j - the JSON object to parse

Returns:

the ENEQuery

tidyNavQuery

public static com.endeca.navigation.ENEQuery tidyNavQuery(com.endeca.navigation.ENEQuery query)

Cleans up and sanitizes a nav query; right now all it does is rewrite the query to include the root if there are otherwise no nav descriptors

Parameters:

query - the query to tidy up

Returns:

the cleaned query

copyQuery

public static com.endeca.navigation.ENEQuery copyQuery(com.endeca.navigation.ENEQuery previousQuery)

This method takes an ENEQuery object and makes a copy of it. It does this indirectly, by copying all properties of the query one by one to the new query object, since the ENEQuery presentationAPI object does not expose a copy method. TODO: review this code and make sure it is correct

Parameters:

previousQuery -

Returns:

ENEQuery newQuery

main

public static void main(java.lang.String[] args)
                 throws org.json.JSONException

Throws:

org.json.JSONException

execute

public static com.endeca.navigation.ENEQueryResults execute(MDEXState mdexState,
                                                            com.endeca.navigation.ENEQuery query)
                                                     throws com.endeca.navigation.ENEQueryException

Throws:

com.endeca.navigation.ENEQueryException