hi all,
i use seam, richfaces and ajax4jsf frameworks for my application,
i have simple question.
i need populate one selectonemenu by another selectonemenu. how i can do it ?
here is my code snippets :
1. View
............. <h:selectOneMenu id="dbType" styleClass="LoginLangCombo" value="#{dbparams.dbVendor}"> <s:selectItems value="#{dbVendors.resultList}" var="vendor" label="#{vendor.dbvendorname}" noSelectionLabel="Please Select DataBase ... "/> <s:convertEntity /> <a4j:support event="onchange" reRender="dbDriverid" /> </h:selectOneMenu> ............. <h:selectOneMenu id="dbDriverid" styleClass="LoginLangCombo" value="#{dbparams.dbDriver}"> <s:selectItems value="#{dbDrivers.resultList}" var="driver" label="#{driver.drivername}" noSelectionLabel="Please Select DataBase ... "/> <s:convertEntity /> </h:selectOneMenu>
@Entity @Table(name = "DB_VENDOR",schema="JITS") public class DbVendor implements Serializable { private static final long serialVersionUID = 1L; private BigDecimal id; private String dbvendorname; private Collection<DbDriver> dbDrivers; // .... setters and getters }
@Entity @Table(name = "DB_DRIVER",schema="JITS") public class DbDriver implements Serializable { private static final long serialVersionUID = 1L; private BigDecimal id; private String dbdrivername; private DbVendor vendor; // .... setters and getters }
.......... <framework:entity-home name="dbVendorHome" entity-class="com.magticom.billing.beans.entity.jits.DbVendor"/> <factory name="dbVendor" value="#{dbVendorHome.instance}"/> <framework:entity-query name="dbVendors" ejbql="select v from DbVendor v" /> ..........