Java API for Elastic Search: Using wildcard to express filters like id<12* or a combinations of them

Elastic Stack Elasticsearch
1

Hi,

I've a requirement that talks about implementing a wildcard filter with
operators like "<", "<=",">",">=","=","!=".
Ex: a<b* or a>=del*

I figured out that for

#1 "=", i could create a wilcard query and wrap it in a
QueryFilterBuilder and append it to other OrFilters or And Filters
*
*
#2 "!=", i could create a wildcard query, wrap it in a
QueryFilterBuilder, and then wrap the QueryFilterBuilder in a
NotFilterBuilder and then append the NotFilterBuilder to other OrFilters or
And Filters.

If anyone of you have worked on such a requirement, could you pls suggest a
solution.

In my application, the input is in the form (a<2&b>=7*)|c=test. I create
one single filter for the query and attach it to the match_all query.
Below is one such example
{
"from": 0,
"size": 10,
"query": {
"bool": {
"must": {
"filtered": {
"query": {"match_all": {}},
"filter": {"term": {"X.id": "*"}}
}
}
}
},
"fields": ["X.id",],"sort": [{"X.id": {"order": "asc"}}]
}

Thanks,
John

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2

The first idea that come to my mind is to convert your user entry to Query String syntax: http://lucene.apache.org/core/4_1_0/queryparser/org/apache/lucene/queryparser/classic/package-summary.html#package_description

Then, pass it to a Match Query or a QueryString query.

But, note that using wildcards will slow your search.

--
David :wink:
Twitter : @dadoonet / @elasticsearchfr / @scrutmydocs

Le 30 janv. 2013 à 22:56, john john2roll2@gmail.com a écrit :

Hi,

I've a requirement that talks about implementing a wildcard filter with operators like "<", "<=",">",">=","=","!=".
Ex: a<b* or a>=del*

I figured out that for

#1 "=", i could create a wilcard query and wrap it in a QueryFilterBuilder and append it to other OrFilters or And Filters

#2 "!=", i could create a wildcard query, wrap it in a QueryFilterBuilder, and then wrap the QueryFilterBuilder in a NotFilterBuilder and then append the NotFilterBuilder to other OrFilters or And Filters.

If anyone of you have worked on such a requirement, could you pls suggest a solution.

In my application, the input is in the form (a<2&b>=7*)|c=test. I create one single filter for the query and attach it to the match_all query.
Below is one such example
{
"from": 0,
"size": 10,
"query": {
"bool": {
"must": {
"filtered": {
"query": {"match_all": {}},
"filter": {"term": {"X.id": "*"}}
}
}
}
},
"fields": ["X.id",],"sort": [{"X.id": {"order": "asc"}}]
}

Thanks,
John

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