<datasources>
    <datasource jndi-name="java:jboss/datasources/ExampleDS" pool-name="ExampleDS" enabled="true" use-java-context="true">
        <connection-url>jdbc:h2:mem:test;DB_CLOSE_DELAY=-1;DB_CLOSE_ON_EXIT=FALSE</connection-url>
        <driver>h2</driver>
        <security>
            <user-name>sa</user-name>
            <password>sa</password>
        </security>
    </datasource>
    <datasource jta="true" jndi-name="java:jboss/datasources/PostgreSQLDS" pool-name="PostgreSQLDS" enabled="true" use-java-context="true">
        <connection-url>jdbc:postgresql://localhost:5432/lucasmucida</connection-url>
        <driver>postgresql</driver>
        <transaction-isolation>TRANSACTION_READ_COMMITTED</transaction-isolation>
        <pool>
            <min-pool-size>10</min-pool-size>
            <max-pool-size>100</max-pool-size>
            <prefill>true</prefill>
        </pool>
        <security>
            <user-name>xxx</user-name>
            <password>xxx</password>
        </security>
        <statement>
            <prepared-statement-cache-size>32</prepared-statement-cache-size>
            <share-prepared-statements>true</share-prepared-statements>
        </statement>
    </datasource>
    <drivers>
        <driver name="h2" module="com.h2database.h2">
            <xa-datasource-class>org.h2.jdbcx.JdbcDataSource</xa-datasource-class>
        </driver>
        <driver name="postgresql" module="org.postgresql">
            <xa-datasource-class>org.postgresql.xa.PGXADataSourc</xa-datasource-class>
        </driver>
    </drivers>
</datasources>

<?xml version="1.0" encoding="UTF-8"?>
<module xmlns="urn:jboss:module:1.0" name="org.postgresql">
  <resources>
    <resource-root path="postgresql-42.1.4.jar"/>
  </resources>
  <dependencies>
     <module name="javax.api"/>
     <module name="javax.transaction.api"/>
   </dependencies>
</module>