Start by completing gemfire-hello and make sure you have a gemfire installed: https://github.com/ivan-greenplum/gemfire-hello

Create a locator and two servers in gfsh

start locator --dir state/locator1
start server --server-port 0 --dir state/s1
start server --server-port 0 --dir state/s2

Create a region for the data

create region --name presidents --type=PARTITION

Compile the code in this repo

mvn clean compile dependency:copy-dependencies package

Run the code

java -cp target/gemfire-hello3-1.0-SNAPSHOT.jar:target/dependency/*  com.vmware.gemfire.GemFireHello3 load

Deploy package to the server inside gfsh

deploy --jar=target/gemfire-hello3-1.0-SNAPSHOT.jar

Run the query again

query --query="SELECT * FROM /presidents"

Install Gemfire Text Search

Download this file: vmware-gemfire-search-1.1.1.gfm

And place this file in the directory $GEMFIRE_HOME/extensions

Update .bashrc to add this environment setting and then logout and backin

export GEMFIRE_EXTENSIONS_REPOSITORY_PATH=$GEMFIRE_HOME/extensions

Test Gemfire Text Search

Now lets create a text index on the presidents

create lucene index --name=presidentIndex --region=/presidents --field=name

test lucene index

search lucene --name=presidentIndex --region=/presidents --queryString="Lincoln" --defaultField=name

Another search

search lucene --name=presidentIndex --region=/presidents --queryString="John" --defaultField=name

Use boolean AND

search lucene --name=presidentIndex --region=/presidents --queryString="John AND Adams" --defaultField=name

Use boolean OR

search lucene --name=presidentIndex --region=/presidents --queryString="John OR Bill" --defaultField=name

Use boolean NOT

search lucene --name=presidentIndex --region=/presidents --queryString="George AND NOT Bush" --defaultField=name

Grouping

search lucene --name=presidentIndex --region=/presidents --queryString="(George AND Bush) OR (James AND NOT Madison)" --defaultField=name

Use Fuzzy Match

search lucene --name=presidentIndex --region=/presidents --queryString="Eisinhower" --defaultField=name
search lucene --name=presidentIndex --region=/presidents --queryString="Eisinhower~" --defaultField=name

Use boosting

search lucene --name=presidentIndex --region=/presidents --queryString="George^2 Adams" --defaultField=name

The ^2 indicates that you want to boost the relevance score of the term "George" by a factor of 2.

This means that results containing "George" will be ranked higher in the search results compared to those containing "Adams".

The term "Adams" is included in the query without any boost, so it will have a standard relevance score.

Now you can use the CLI to do the search as well:

java -cp target/gemfire-hello3-1.0-SNAPSHOT.jar:target/dependency/*  com.vmware.gemfire.GemFireHello3 search "George AND NOT Bush"