A MasterInfo class exists for each protocol. The MasterInfo describes the parameters needed to configure a listener and an emitter. To prepare a MasterInfo, extend the MasterInfo base class with a specific instance. A MasterInfo is static, so that the tables appear once in memory, but are instanced as needed to make available their methods to validate entered parameters.

When you develop a component, you provide a reference to the static instance of your MasterInfo in the addListener() and addEmitter() calls.

The following syntax is an example of a MasterInfo class.

package com.ibi.config;
import com.ibi.edaqm.XD;
import java.util.*;
public class MasterInfoTick extends MasterInfo
{
    public static final MasterInfoTick INFO = new MasterInfoTick("Tick", "Tick", "Passes input on a predefined interval");
    private MasterInfoTick(MasterType type) {
        super(type);
    }
    private MasterInfoTick(String innerName, String patternName, String description) {
        super(innerName,patternName,description);
    }
    public static final MasterPropertyInfo RETRY =   
    new MasterPropertyInfo(XD.KW_TIMEOUT, "Execution Interval", "2.0", PropertyType.DECIMAL_TENTHS, MasterPropertyInfo.REQUIRED,
                           "Interval between cycled requests", "#listener.schedule.timeout");
    public static final MasterPropertyInfo FILE =   
    new MasterPropertyInfo(XD.KW_FILE, "Input File", "", PropertyType.FILE, MasterPropertyInfo.OPTIONAL,
                           "Name of a file to use for repeating input, if empty, use builtin document", null);
    public static final MasterPropertyInfo INTYPE =   
    new MasterPropertyInfo("type", "Operation Type", "tree", PropertyType.CHOICE, MasterPropertyInfo.OPTIONAL,
                           "Type of message to pass through: tree is preparsed, bytes are parsed each pass", null);
    static {
        Map typeValues = new TreeMap();
        typeValues.put("tree", "tree: preparsed");
        typeValues.put("bytes", "bytes: parsed each pass");
        INTYPE.setAllowedValues(typeValues);
    }
    // List of all the master properties
    private static final MasterPropertyInfo[] PRIVATE_VALUES =
    { CommonMasterProps.ACTIVE,
        RETRY,
        FILE,
        INTYPE,
        CommonMasterProps.XALOG,   // removed own parm and use common, SOC-727
        CommonMasterProps.COUNT, 
        CommonMasterProps.MAX_LIFE};
    private static final List VALUES = 
    Collections.unmodifiableList(Arrays.asList(PRIVATE_VALUES));
    /**
     * Returns a List of the master's properties.
     * @return a List of the master's properties.
     */
    public List getMasterProperties() {
        return VALUES;
    }
    // List of all the master properties
    private static final MasterPropertyInfo[] PRIVATE_REPLYTO_VALUES =
    {};
    private static final List REPLYTO_VALUES = Collections.unmodifiableList(Arrays.asList(PRIVATE_REPLYTO_VALUES));
    public List getReplytoProperties() {
        return REPLYTO_VALUES;
    }
}