Java RMI
iHook Required Section
This is required at the beginning of any Java iHook execute() method.
HookOutput hookOutput = new
HookOutput();hookOutput.setInvocationNumber(hookInput.getInvocationNumber());
hookOutput.setOriginalRowset(hookInput.getOriginalRowset());
Hello World in iHooks
import com.datafoundations.onedata.hook.OnedataHook;
import com.datafoundations.onedata.hook.HookOutput;
import com.datafoundations.onedata.hook.HookInput;
import java.rmi.RemoteException;
import java.rmi.server.UnicastRemoteObject;
public class HelloWorldHook extends UnicastRemoteObject
implements OnedataHook{
public HelloWorldHook() throws RemoteException {
super(); }
public void init() throws RemoteException { }
public void commit() throws RemoteException { }
public void rollback() throws RemoteException { }
public void close() throws RemoteException { }
public HookOutput execute(HookInput hookInput) throws RemoteException {
HookOutput hookOutput = new HookOutput();
hookOutput.setInvocationNumber(hookInput.getInvocationNumber());
hookOutput.setOriginalRowset(hookInput.getOriginalRowset());
hookOutput.setMessage("Hello World!");
return hookOutput; }
public void setSavepoint(String string) { }
public void releaseSavepoint(String string) { }
public void rollback(String string) { }}
Creating a Showable Rowset from an Existing Object
if (hookInput.getInvocationNumber() == 0) { ActionRowset objActionRow =
hookInput.getOriginalRowset();
if (objActionRow != null) {
List list_Rows = objActionRow.getRows();
ShowableRowset objShowable = new ShowableRowset();
objShowable.setRows(hookInput.getOriginalRowset().getRows());
objShowable.setObjectName(hookInput.getOriginalRowset()
.getObjectName());
objShowable.setObjectType(hookInput.getOriginalRowset()
.getObjectType());
objShowable.setSelectionType(1);
objShowable.setSelectionTypeDesc("Single");
hookOutput.setShowRowset(objShowable);
Question question = new Question();
test_Question.setText ("Select a row to associate and click on
'Associate' or click on 'Create New' to create a new row'");
Answer answer1 = new Answer();
answer1.setId(1);
answer1.setText("Associate");
answer1.setOrder(1);
Answer answer2 = new Answer();
answer2.setId(2);
answer2.setText("Create New");
answer2.setOrder(2);
List answers = new ArrayList();
answers.add(answer1);
answers.add(answer2 );
auestion.setAnswers(answers);
hookOutput.setQuestion(question);
}
}
Creating a Showable Rowset for a Custom Object
List rowList = new ArrayList();
Row objRow1 = new Row();
List list_col1 = new ArrayList();
Column objCOL1 = new Column();
objCOL1.setName("ACC_CD");
objCOL1.setValue("100");
list_col1.add(objCOL1);
Column objCOL2 = new Column();
objCOL2.setName("ACC_NM");
objCOL2.setValue("AC100");
list_col1.add(objCOL2);
objRow1.setColumns(list_col1);
rowList.add(objRow1);
objRow1 = new Row();
list_col1 = new ArrayList();
objCOL1 = new Column();
objCOL1.setName("ACC_CD");
objCOL1.setValue("200");
list_col1.add(objCOL1);
objCOL2 = new Column();
objCOL2.setName("ACC_NM");
objCOL2.setValue("AC200");
list_col1.add(objCOL2);
objRow1.setColumns(list_col1);
rowList.add(objRow1);
ShowableRowset objShowable = new ShowableRowset();
objShowable.setRows(rowList);
objShowable.setObjectName("TEST");
objShowable.setObjectType(4);
objShowable.setSelectionType(1);
objShowable.setSelectionTypeDesc("Single");
hookOutput.setShowRowset(objShowable);
Conceptual Object DML
The following code inserts a record to Brand object in Product->Brand->Vendor hierarchy. The insertion is done with conceptual object context.
if(hookInput.getInvocationNumber() == 0){
Question question = new Question();
question.setText("Enter Data");
Answer answer1 = new Answer();
answer1.setId(1);
answer1.setText("Submit");
answer1.setOrder(0);
List answerList = new ArrayList();
answerList.add(answer1);
question.setAnswers(answerList);
hookOutput.setQuestion(question);
Forms forms = new Forms();
Form form1 = new Form();
form1.setCardinality(1);
form1.setObjectName("Brand ");
forms.addForm(form1);
hookOutput.setForms(forms);
}
else{
Forms forms = hookInput.getForms();
List list_forms = forms.getForms();
Iterator iter = list_forms.iterator();
Actions objActions = new Actions();
int order = 0;
while(iter.hasNext()){
Form form1 = (Form)iter.next();
ActionRowset objActionRowset = new ActionRowset();
objActionRowset.setActionType(
objActionRowset.ACTION_TYPE_INSERT);
objActionRowset.setRows(form1.getRowset().getRows());
objActionRowset.setObjectName(form1.getObjectName());
objActionRowset.setObjectType(2);
objActionRowset.setConceptualObjectName("Product_Catalog");
objActionRowset.setOrder(1);
objActions.addAction(objActionRowset);
}
hookOutput.setActions(objActions);
hookOutput.setMessage("Data inserted successfully.");
}
Form
import java.rmi.RemoteException;
import java.rmi.server.UnicastRemoteObject;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import com.datafoundations.onedata.hook.ActionRowset;
import com.datafoundations.onedata.hook.Actions;
import com.datafoundations.onedata.hook.Answer;
import com.datafoundations.onedata.hook.Form;
import com.datafoundations.onedata.hook.Forms;
import com.datafoundations.onedata.hook.HookInput;
import com.datafoundations.onedata.hook.HookOutput;
import com.datafoundations.onedata.hook.OnedataHook;
import com.datafoundations.onedata.hook.Question;
public class SampleFormHook extends UnicastRemoteObject
implements OnedataHook {
public SampleFormHook() throws RemoteException { super(); }
public void init() throws RemoteException { }
public void commit() throws RemoteException { }
public void rollback() throws RemoteException { }
public void close() throws RemoteException { }
public HookOutput execute(HookInput hookInput)
throws RemoteException {
HookOutput hookOutput = new HookOutput();
hookOutput.setInvocationNumber(hookInput.getInvocationNumber());
hookOutput.setOriginalRowset(hookInput.getOriginalRowset());
if(hookInput.getInvocationNumber() == 0){
Question question = new Question();
question.setText("Enter Data");
Answer answer1 = new Answer();
answer1.setId(1);
answer1.setText("Submit");
answer1.setOrder(0);
List answerList = new ArrayList();
answerList.add(answer1);
question.setAnswers(answerList);
hookOutput.setQuestion(question);
Forms forms = new Forms();
Form form1 = new Form();
form1.setCardinality(1);
Form1.setObjectName("Data Object");
forms.addForm(form1);
hookOutput.setForms(forms);
}
else{
Forms forms = hookInput.getForms();
List formList = forms.getForms();
Actions actions = new Actions();
for (Iterator it = formList.iterator();
it.hasNext();) {
Form form = (Form) it.next();
ActionRowset insertRowSet = new ActionRowset();
insertRowSet.setObjectName(form.getObjectName());
insertRowSet.setActionType(ActionRowset.ACTION_TYPE_INSERT);
insertRowSet.setActionTypeDesc("INSERT");
insertRowSet.setObjectType(form.getObjectType());
insertRowSet.setRows(form.getRowset().getRows());
actions.addAction(insertRowSet);
}
hookOutput.setActions(actions);
hookOutput.setMessage("Data inserted successfully.");
}
return hookOutput;
}
public void setSavepoint(String string) { }
public void releaseSavepoint(String string) { }
public void rollback(String string) {
}}
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