QuestCore
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      Documentation
       QuestCore is a set of utility classes and components to help developers building their Java applications. To run the component in an application server, you need a server that supports EJB 2.0.
      Classes
  • ContextUtils:
    		•  Management of JNDI Contexts.
  • DataSourceFactory:
    		•  A factory for creating and caching access to datasources.
  • EJBHomeFactory:
    		•  A factory for creating and caching access to EJBs.
  • EJBUtils:
    		•  Management of EJBs
  • JMSUtils:
    		•  Management of JMS Connections, Queues and Sessions.
  • NumberingManager:
    		•  Generation of Sequences for using in tables, or other stuff (just with Session Beans).
  • SequencerManager:
    		•  Generation of Sequences for using in tables, or other stuff (using Entity Beans).
  • DataSet:
    		•  Keeping the information about a database result in a DataSet (various rows and columns).
  • DynamicQuery:
    		•  Construct a sql query dynamically.
  • SQLUtil:
    		•  Management of ResultSet, PreparedStatement, Connection, etc...
  • CompressUtil:
    		•  Zip and Unzip files trought Java.
  • DateUtils:
    		•  Management of Date formats and transformations.
  • FileUtils:
    		•  Management of file creation, deletion, listing, copying, etc...
  • MimeType:
    		•  Discouver the MimeType associated with a determined extension.
  • XMLUtils:
    		•  Utilities for XML Parsing and transformation.
    ContextUtils
    //Get an initial context
    Context ctx = ContextUtils.getRootContext();

    //Lookup an entry in the jndi tree
    String str = (String)ContextUtils.lookup(ctx,"name",String.class);

    //Close the context, ignoring the exception
    ContextUtils.close(ctx);
    DataSourceFactory
    A singleton for creating and caching references to DataSources that are looked up in the JNDI Tree.

    //Get the instance of the singleton and look for a Datasource
    DataSourceFactory dfact = DataSourceFactory.getInstance();
    DataSource dsource = dfact.getDataSource("datasource name");
    EJBHomeFactory
    A singleton for creating and caching references to EJBs that are looked up in the JNDI Tree.

    //Get the instance of the singleton and look for an EJB
    EJBHomeFactory ejbfact = EJBHomeFactory.getInstance();
    SomeEJBHome home = ejbfact.lookup("ejb home name",SomeEJBHome.class);
    NumberingManager
    An EJB to generate a sequencial number using a configuration in a database table. This EJB only used JDBC and not entity beans.

    //Look for the EJB
    EJBHomeFactory ejbfact = EJBHomeFactory.getInstance();
    NumberingManagerHome home = ejbfact.lookup("pt.jcodeutil.core.numbering.NumberingManagerHome",NumberingManagerHome.class);
    NumberingManager numbering = home.create();

    //Get the sequence
    long sequenceid = numbering.getNextID("key","DataSource JNDI Name");

    SequencerManager
    An EJB to generate a sequencial number using a configuration in a database table. This EJB uses entity beans.

    //Look for the EJB
    EJBHomeFactory ejbfact = EJBHomeFactory.getInstance();
    SequencerManagerHome home = ejbfact.lookup("pt.jcodeutil.core.numbering.ent.SequencerManagerHome",SequencerManagerHome.class);
    SequencerManager sequencer = home.create();

    //Get the sequence
    long sequenceid = sequencer.nextValue("key");

    DynamicQuery
    @TODO

    DateUtils
    //Add days, months and years to dates (Date or Timestamp)
    long lnow = System.currentTimeMillis();
    Timestamp tstart = new Timestamp(lnow);
    java.util.Date dstart = new java.util.Date(lnow);
    Timestamp tend = DateUtils.addDaysToTimestamp(tstart,1);
    java.util.Date dend = DateUtils.addDaysToUtilDate(dstart,1);

    tend = DateUtils.addMonthToTimestamp(tstart,1);
    dend = DateUtils.addMonthToUtilDate(dstart,1);

    tend = DateUtils.addValueToTimestamp(tstart,1000, Calendar.MILLISECOND);
    dend = DateUtils.addValueToUtilDate(dstart,1000, Calendar.MILLISECOND);

    tend = DateUtils.addYearToTimestamp(tstart,5);
    dend = DateUtils.addYearToUtilDate(dstart,5);

    XMLUtils
    @TODO