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Serverside bug in DSRequest.setAdvancedCriteria() resulting in unbounded DELETE

July 1, 2014, 8:29 am
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Hi Isomorphic,

I'm using v9.1p_2014-06-29 (With FF26, Oracle 11gR2 XE, Tomcat 7, Java 7) and get following server-side bug related to DSRequest.setAdvancedCriteria(new AdvancedCriteria(...)).

The Criteria are not set correctly, resulting in
  • A delete with to few criteria (no PK), even though setAllowMultiUpdate is not set!
  • A useless and exception creating "SELECT T_LEAD_PRODUCTINTEREST_ID.CurrVal FROM DUAL" (not suitable after a DELETE)

Here all you might need:

Client request:
Code:
{
    dataSource:"V_LEAD_PRODUCT_ASSIGNED",
    operationType:"remove",
    componentId:"isc_AddEditLeadProductInterest_2_5",
    data:{
        LEAD_PRODUCTINTEREST_ID:4,
        PRODUCT_ID:4,
        PRODUCT_NAME:"Middleware",
        LEAD_ID:36,
        PRODUCTCATEGORY_NAME:"Jboss",
        PRODUCTCATEGORY_ID:3,
        TENANT_ID:2,
        PRODUCT_AVAILABLE:true
    },
    textMatchStyle:"exact",
    callback:{
        target:[ListGrid ID:isc_AddEditLeadProductInterest_2_5],
        methodName:"removeDataComplete"
    },
    showPrompt:false,
    oldValues:{
        LEAD_PRODUCTINTEREST_ID:4,
        PRODUCT_ID:4,
        PRODUCT_NAME:"Middleware",
        LEAD_ID:36,
        PRODUCTCATEGORY_NAME:"Jboss",
        PRODUCTCATEGORY_ID:3,
        TENANT_ID:2,
        PRODUCT_AVAILABLE:true
    },
    requestId:"V_LEAD_PRODUCT_ASSIGNED$62777",
    internalClientContext:{
        removeDataCallback:"isc_AddEditLeadProductInterest_2_5.showRemoveCompleteAnimation(1, data,dsResponse);",
        editInfo:{
            fromUserAction:true,
            rowNum:1,
            values:Obj,
            editCompletionEvent:"programmatic"
        }
    },
    fallbackToEval:false,
    lastClientEventThreadCode:"TMR0",
    bypassCache:true
}
Server log:
Code:
=== 2014-07-01 17:18:08,219 [ec-5] INFO  RequestContext - URL: '/lms/lms/sc/IDACall', User-Agent: 'Mozilla/5.0 (Windows NT 6.2; WOW64; rv:26.0) Gecko/20100101 Firefox/26.0': Moz (Gecko) with Accept-Encoding header
=== 2014-07-01 17:18:08,224 [ec-5] DEBUG XML - Parsed XML from (in memory stream): 3ms
=== 2014-07-01 17:18:08,224 [ec-5] DEBUG ISCKeyedObjectPool - Borrowing object for 'transaction'
=== 2014-07-01 17:18:08,225 [ec-5] DEBUG ISCKeyedObjectPool - Borrowing object for 'Object'
=== 2014-07-01 17:18:08,226 [ec-5] DEBUG ISCKeyedObjectPool - Borrowing object for 'List'
=== 2014-07-01 17:18:08,227 [ec-5] DEBUG ISCKeyedObjectPool - Borrowing object for 'elem'
=== 2014-07-01 17:18:08,230 [ec-5] DEBUG RPCManager - Processing 1 requests.
=== 2014-07-01 17:18:08,230 [ec-5] DEBUG ISCKeyedObjectPool - Borrowing object for 'V_LEAD_PRODUCT_ASSIGNED'
=== 2014-07-01 17:18:08,230 [ec-5] DEBUG DSRequest - Caching instance 509 of DS V_LEAD_PRODUCT_ASSIGNED from DSRequest.getDataSource()
=== 2014-07-01 17:18:08,231 [ec-5] DEBUG RPCManager - Request #1 (DSRequest) payload: {
    criteria:{
        LEAD_PRODUCTINTEREST_ID:4,
        PRODUCT_ID:4,
        PRODUCT_NAME:"Middleware",
        LEAD_ID:36,
        PRODUCTCATEGORY_NAME:"Jboss",
        PRODUCTCATEGORY_ID:3,
        TENANT_ID:2,
        PRODUCT_AVAILABLE:true,
        _selection_71:true
    },
    operationConfig:{
        dataSource:"V_LEAD_PRODUCT_ASSIGNED",
        operationType:"remove",
        textMatchStyle:"exact"
    },
    componentId:"isc_AddEditLeadProductInterest_2_5",
    appID:"builtinApplication",
    operation:"V_LEAD_PRODUCT_ASSIGNED_remove",
    oldValues:{
        LEAD_PRODUCTINTEREST_ID:4,
        PRODUCT_ID:4,
        PRODUCT_NAME:"Middleware",
        LEAD_ID:36,
        PRODUCTCATEGORY_NAME:"Jboss",
        PRODUCTCATEGORY_ID:3,
        TENANT_ID:2,
        PRODUCT_AVAILABLE:true,
        _selection_71:true
    }
}
=== 2014-07-01 17:18:08,231 [ec-5] DEBUG DeclarativeSecurity - Processing security checks for DataSource null, field null
=== 2014-07-01 17:18:08,231 [ec-5] DEBUG DeclarativeSecurity - DataSource V_LEAD_PRODUCT_ASSIGNED is not in the pre-checked list, processing...
=== 2014-07-01 17:18:10,885 [ec-5] DEBUG DeclarativeSecurity - Processing security checks for DataSource null, field null
=== 2014-07-01 17:18:10,885 [ec-5] DEBUG ISCKeyedObjectPool - Borrowing object for 'T_LEAD_PRODUCTINTEREST'
=== 2014-07-01 17:18:10,886 [ec-5] DEBUG DSRequest - Caching instance 177 of DS T_LEAD_PRODUCTINTEREST from DSRequest.getDataSource()
=== 2014-07-01 17:18:10,886 [ec-5] DEBUG AppBase - [builtinApplication.null] No userTypes defined, allowing anyone access to all operations for this application
=== 2014-07-01 17:18:10,886 [ec-5] DEBUG AppBase - [builtinApplication.null] No public zero-argument method named '_null' found, performing generic datasource operation
=== 2014-07-01 17:18:10,887 [ec-5] INFO  SQLDataSource - [builtinApplication.null] Performing remove operation with
        criteria: {TENANT_ID:2}        values: {TENANT_ID:2}
=== 2014-07-01 17:18:10,888 [ec-5] DEBUG PoolableSQLConnectionFactory - [builtinApplication.null] Connection was already closed in validateObject - returning false
=== 2014-07-01 17:18:10,922 [ec-5] DEBUG PoolableSQLConnectionFactory - [builtinApplication.null] makeObject() created a pooled Connection '1606697951'
=== 2014-07-01 17:18:10,922 [ec-5] DEBUG PoolableSQLConnectionFactory - [builtinApplication.null] Executing pingTest 'select 1 from dual' on connection 1606697951
=== 2014-07-01 17:18:10,924 [ec-5] DEBUG SQLConnectionManager - [builtinApplication.null] Borrowed connection '1606697951'
=== 2014-07-01 17:18:10,924 [ec-5] DEBUG SQLTransaction - [builtinApplication.null] Started new Oracle transaction "1606697951"
=== 2014-07-01 17:18:10,924 [ec-5] DEBUG SQLDriver - [builtinApplication.null] About to execute SQL update in 'Oracle' using connection'1606697951'
=== 2014-07-01 17:18:10,924 [ec-5] INFO  SQLDriver - [builtinApplication.null] Executing SQL update on 'Oracle': DELETE FROM T_LEAD_PRODUCTINTEREST WHERE (T_LEAD_PRODUCTINTEREST.TENANT_ID=2)
=== 2014-07-01 17:18:10,925 [ec-5] DEBUG SQLDataSource - [builtinApplication.null] remove operation affected 2 rows
=== 2014-07-01 17:18:10,925 [ec-5] DEBUG SQLDriver - [builtinApplication.null] About to execute SQL query in 'Oracle' using connection '1606697951'
=== 2014-07-01 17:18:10,926 [ec-5] INFO  SQLDriver - [builtinApplication.null] Executing SQL query on 'Oracle': SELECT T_LEAD_PRODUCTINTEREST_ID.CurrVal FROM DUAL
=== 2014-07-01 17:18:10,927 [ec-5] DEBUG DataSourceDMI - Invocation threw exception
java.sql.SQLException: ORA-08002: sequence T_LEAD_PRODUCTINTEREST_ID.CURRVAL is not yet defined in this session

        at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:447)
        at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:396)
        at oracle.jdbc.driver.T4C8Oall.processError(T4C8Oall.java:951)
        at oracle.jdbc.driver.T4CTTIfun.receive(T4CTTIfun.java:513)
        at oracle.jdbc.driver.T4CTTIfun.doRPC(T4CTTIfun.java:227)
        at oracle.jdbc.driver.T4C8Oall.doOALL(T4C8Oall.java:531)
        at oracle.jdbc.driver.T4CStatement.doOall8(T4CStatement.java:195)
        at oracle.jdbc.driver.T4CStatement.executeForDescribe(T4CStatement.java:876)
        at oracle.jdbc.driver.OracleStatement.executeMaybeDescribe(OracleStatement.java:1175)
        at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1296)
        at oracle.jdbc.driver.OracleStatement.executeQuery(OracleStatement.java:1498)
        at oracle.jdbc.driver.OracleStatementWrapper.executeQuery(OracleStatementWrapper.java:406)
        at org.apache.commons.dbcp.DelegatingStatement.executeQuery(DelegatingStatement.java:208)
        at com.isomorphic.sql.SQLDriver.getTransformedResults(SQLDriver.java:619)
        at com.isomorphic.sql.SQLDriver.getTransformedResults(SQLDriver.java:548)
        at com.isomorphic.sql.SQLDriver.getTransformedResults(SQLDriver.java:541)
        at com.isomorphic.sql.SQLDriver.getScalarResult(SQLDriver.java:705)
        at com.isomorphic.sql.OracleDriver.fetchLastPrimaryKeys(OracleDriver.java:243)
        at com.isomorphic.sql.SQLDataSource.getLastPrimaryKeys(SQLDataSource.java:788)
        at com.isomorphic.sql.SQLDataSource.SQLExecute(SQLDataSource.java:1985)
        at com.isomorphic.sql.SQLDataSource.processRequest(SQLDataSource.java:444)
        at com.isomorphic.sql.SQLDataSource.executeRemove(SQLDataSource.java:401)
        at com.lmscompany.lms.server.LMSSQLDataSource.executeRemove(LMSSQLDataSource.java:54)
        at com.isomorphic.datasource.DataSource.execute(DataSource.java:1552)
        at com.isomorphic.application.AppBase.executeDefaultDSOperation(AppBase.java:723)
        at com.isomorphic.application.AppBase.executeAppOperation(AppBase.java:658)
        at com.isomorphic.application.AppBase.execute(AppBase.java:491)
        at com.isomorphic.datasource.DSRequest.execute(DSRequest.java:2553)
        at com.lmscompany.lms.server.worker.V_LEAD_PRODUCT_ASSIGNED.remove(V_LEAD_PRODUCT_ASSIGNED.java:33)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at com.isomorphic.base.Reflection.adaptArgsAndInvoke(Reflection.java:975)
        at com.isomorphic.datasource.DataSourceDMI.execute(DataSourceDMI.java:416)
        at com.isomorphic.datasource.DataSourceDMI.execute(DataSourceDMI.java:64)
        at com.isomorphic.datasource.DSRequest.execute(DSRequest.java:2549)
        at com.isomorphic.servlet.IDACall.handleDSRequest(IDACall.java:215)
        at com.isomorphic.servlet.IDACall.processRPCTransaction(IDACall.java:172)
        at com.lmscompany.lms.server.LMSIDACall.processRequest(LMSIDACall.java:33)
        at com.isomorphic.servlet.IDACall.doPost(IDACall.java:73)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:647)
        at com.isomorphic.servlet.BaseServlet.service(BaseServlet.java:152)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
        at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
        at com.isomorphic.servlet.CompressionFilter.doFilter(CompressionFilter.java:260)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
        at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:611)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
        at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:409)
        at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1044)
        at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)
        at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:313)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
        at java.lang.Thread.run(Unknown Source)
=== 2014-07-01 17:18:10,930 [ec-5] WARN  RequestContext - dsRequest.execute() failed:
java.sql.SQLException: ORA-08002: sequence T_LEAD_PRODUCTINTEREST_ID.CURRVAL is not yet defined in this session

        at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:447)
        at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:396)
        at oracle.jdbc.driver.T4C8Oall.processError(T4C8Oall.java:951)
        at oracle.jdbc.driver.T4CTTIfun.receive(T4CTTIfun.java:513)
        at oracle.jdbc.driver.T4CTTIfun.doRPC(T4CTTIfun.java:227)
        at oracle.jdbc.driver.T4C8Oall.doOALL(T4C8Oall.java:531)
        at oracle.jdbc.driver.T4CStatement.doOall8(T4CStatement.java:195)
        at oracle.jdbc.driver.T4CStatement.executeForDescribe(T4CStatement.java:876)
        at oracle.jdbc.driver.OracleStatement.executeMaybeDescribe(OracleStatement.java:1175)
        at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1296)
        at oracle.jdbc.driver.OracleStatement.executeQuery(OracleStatement.java:1498)
        at oracle.jdbc.driver.OracleStatementWrapper.executeQuery(OracleStatementWrapper.java:406)
        at org.apache.commons.dbcp.DelegatingStatement.executeQuery(DelegatingStatement.java:208)
        at com.isomorphic.sql.SQLDriver.getTransformedResults(SQLDriver.java:619)
        at com.isomorphic.sql.SQLDriver.getTransformedResults(SQLDriver.java:548)
        at com.isomorphic.sql.SQLDriver.getTransformedResults(SQLDriver.java:541)
        at com.isomorphic.sql.SQLDriver.getScalarResult(SQLDriver.java:705)
        at com.isomorphic.sql.OracleDriver.fetchLastPrimaryKeys(OracleDriver.java:243)
        at com.isomorphic.sql.SQLDataSource.getLastPrimaryKeys(SQLDataSource.java:788)
        at com.isomorphic.sql.SQLDataSource.SQLExecute(SQLDataSource.java:1985)
        at com.isomorphic.sql.SQLDataSource.processRequest(SQLDataSource.java:444)
        at com.isomorphic.sql.SQLDataSource.executeRemove(SQLDataSource.java:401)
        at com.lmscompany.lms.server.LMSSQLDataSource.executeRemove(LMSSQLDataSource.java:54)
        at com.isomorphic.datasource.DataSource.execute(DataSource.java:1552)
        at com.isomorphic.application.AppBase.executeDefaultDSOperation(AppBase.java:723)
        at com.isomorphic.application.AppBase.executeAppOperation(AppBase.java:658)
        at com.isomorphic.application.AppBase.execute(AppBase.java:491)
        at com.isomorphic.datasource.DSRequest.execute(DSRequest.java:2553)
        at com.lmscompany.lms.server.worker.V_LEAD_PRODUCT_ASSIGNED.remove(V_LEAD_PRODUCT_ASSIGNED.java:33)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at com.isomorphic.base.Reflection.adaptArgsAndInvoke(Reflection.java:975)
        at com.isomorphic.datasource.DataSourceDMI.execute(DataSourceDMI.java:416)
        at com.isomorphic.datasource.DataSourceDMI.execute(DataSourceDMI.java:64)
        at com.isomorphic.datasource.DSRequest.execute(DSRequest.java:2549)
        at com.isomorphic.servlet.IDACall.handleDSRequest(IDACall.java:215)
        at com.isomorphic.servlet.IDACall.processRPCTransaction(IDACall.java:172)
        at com.lmscompany.lms.server.LMSIDACall.processRequest(LMSIDACall.java:33)
        at com.isomorphic.servlet.IDACall.doPost(IDACall.java:73)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:647)
        at com.isomorphic.servlet.BaseServlet.service(BaseServlet.java:152)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
        at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
        at com.isomorphic.servlet.CompressionFilter.doFilter(CompressionFilter.java:260)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
        at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:611)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
        at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:409)
        at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1044)
        at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)
        at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:313)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
        at java.lang.Thread.run(Unknown Source)
=== 2014-07-01 17:18:10,932 [ec-5] DEBUG RPCManager - Content type for RPC transaction: text/plain; charset=UTF-8
=== 2014-07-01 17:18:10,932 [ec-5] DEBUG SQLTransaction - Rolling back Oracle transaction "1606697951"
=== 2014-07-01 17:18:10,933 [ec-5] DEBUG RPCManager - non-DMI response, dropExtraFields: false
=== 2014-07-01 17:18:10,934 [ec-5] DEBUG SQLTransaction - getConnection() found transactional connection for Oracle with hashcode "1606697951"
=== 2014-07-01 17:18:10,934 [ec-5] DEBUG SQLTransaction - Ending Oracle transaction "1606697951"
=== 2014-07-01 17:18:10,934 [ec-5] DEBUG SQLConnectionManager - About to close ISCPoolableConnection with hashcode "1606697951"
=== 2014-07-01 17:18:10,935 [ec-5] DEBUG PoolableSQLConnectionFactory - Executing pingTest 'select 1 from dual' on connection 1606697951
=== 2014-07-01 17:18:10,936 [ec-5] INFO  Compression - /lms/lms/sc/IDACall: 226 -> 197 bytes
V_LEAD_PRODUCT_ASSIGNED.ds.xml (accessed by the client)
Code:
<DataSource dbName="Oracle" tableName="V_LEAD_PRODUCT_ASSIGNED" ID="V_LEAD_PRODUCT_ASSIGNED"
        serverType="sql" serverConstructor="com.lmscompany.lms.server.LMSSQLDataSource">
        <fields>
                <field hidden="true" name="TENANT_ID" type="integer" />
                <field name="LEAD_PRODUCTINTEREST_ID" type="integer" hidden="true" />
                <field primaryKey="true" name="LEAD_ID" type="integer" />
                <field primaryKey="true" name="PRODUCT_ID" type="integer" displayField="PRODUCT_NAME" />
                <field name="PRODUCT_NAME" length="60" type="text" hidden="true" />
                <field name="PRODUCT_AVAILABLE" length="1" type="boolean" sqlStorageStrategy="singleCharYN" />
                <field name="PRODUCTCATEGORY_ID" type="integer" displayField="PRODUCTCATEGORY_NAME" />
                <field name="PRODUCTCATEGORY_NAME" length="60" type="text" hidden="true" />
        </fields>
        <serverObject lookupStyle="new" className="com.lmscompany.lms.server.worker.V_LEAD_PRODUCT_ASSIGNED" />
        <operationBindings>
                <operationBinding operationType="update" requiresRole="readonly" />
                <operationBinding operationType="add" />
                <operationBinding operationType="remove" />
                <operationBinding operationType="fetch" />
                <operationBinding operationType="fetch" operationId="assignedProducts">
                        <whereClause>LEAD_PRODUCTINTEREST_ID IS NOT NULL AND ($defaultWhereClause)</whereClause>
                </operationBinding>
                <operationBinding operationType="fetch" operationId="unassignedProducts">
                        <whereClause>LEAD_PRODUCTINTEREST_ID IS NULL AND PRODUCT_AVAILABLE = 'Y' AND ($defaultWhereClause)</whereClause>
                </operationBinding>
        </operationBindings>
</DataSource>
LMSSQLDataSource (adds the tenant_id-criteria, most likely not needed, included for completeness)
Code:
package com.lmscompany.lms.server;

import java.util.Map;

import com.isomorphic.criteria.AdvancedCriteria;
import com.isomorphic.criteria.Criterion;
import com.isomorphic.criteria.DefaultOperators;
import com.isomorphic.criteria.criterion.IsNullCriterion;
import com.isomorphic.criteria.criterion.SimpleCriterion;
import com.isomorphic.datasource.DSField;
import com.isomorphic.datasource.DSRequest;
import com.isomorphic.datasource.DSResponse;
import com.isomorphic.datasource.DataSource;
import com.isomorphic.sql.SQLDataSource;
import com.lmscompany.lms.server.util.User;

public class LMSSQLDataSource extends SQLDataSource {
        private static final long serialVersionUID = 3994104605640773331L;

        /*
        * See:
        * http://forums.smartclient.com/showthread.php?t=28646
        * http://www.smartclient.com/smartgwtee/javadoc/com/smartgwt/client/docs/WriteCustomDataSource.html
        * http://www.smartclient.com/smartgwtee/server/javadoc/com/isomorphic/sql/SQLDataSource.html
        */

        @Override
        public DSResponse executeAdd(DSRequest req) throws Exception {
                @SuppressWarnings("unchecked")
                Map<String, Object> requestValues = req.getValues();
                requestValues.put("TENANT_ID", User.getUserTenantId(req.getHttpServletRequest()));
                req.setValues(requestValues);
                return super.executeAdd(req);
        };

        @Override
        public DSResponse executeFetch(DSRequest dsRequest) throws Exception {
                // T_USER.fetchUserIdForLoginname occurs before session parameters are set,
                // so do not try to modify.
                if (!dsRequest.getDataSourceName().equals("T_USER") || !dsRequest.getOperationId().equals("fetchUserIdForLoginname"))
                        modifyCriteria(dsRequest);
                return super.executeFetch(dsRequest);
        }

        @Override
        public DSResponse executeUpdate(DSRequest req) throws Exception {
                modifyCriteria(req);
                return super.executeUpdate(req);
        }

        @Override
        public DSResponse executeRemove(DSRequest req) throws Exception {
                modifyCriteria(req);
                return super.executeRemove(req);
        }

        private static DSRequest modifyCriteria(DSRequest dsRequest) throws Exception {
                // Add "TENANT_ID = x" - Criteria for fetch/update/remove
                if (dsRequest.getOperationType().equals(DataSource.OP_FETCH) || dsRequest.getOperationType().equals(DataSource.OP_UPDATE)
                                || dsRequest.getOperationType().equals(DataSource.OP_REMOVE)) {

                        // TODO: See http://forums.smartclient.com/showthread.php?t=29408 for why the two-param version is used here.
                        // dsRequest.addToCriteria("TENANT_ID", DefaultOperators.Equals,
                        // User.getUserTenantId(dsRequest.getHttpServletRequest()));
                        dsRequest.addToCriteria("TENANT_ID", User.getUserTenantId(dsRequest.getHttpServletRequest()));
                        // Add additional "xyz_TENANT_ID = x" - Criteria for fetch for
                        // "includeFrom"-fields
                        if (dsRequest.getOperationType().equals(DataSource.OP_FETCH)) {
                                for (Object fn : dsRequest.getDataSource().getFieldNames()) {
                                        String fieldName = fn.toString();
                                        if ((dsRequest.getConsolidatedOutputs() == null || dsRequest.getConsolidatedOutputs().contains(fn))
                                                        && fieldName.endsWith("_TENANT_ID")) {
                                                if (!isOuterJoined(fieldName, dsRequest.getDataSource())) {
                                                        dsRequest.addToCriteria(fieldName, DefaultOperators.Equals, User.getUserTenantId(dsRequest.getHttpServletRequest()));
                                                } else {
                                                        AdvancedCriteria ac = new AdvancedCriteria(DefaultOperators.Or, new Criterion[] {
                                                                        new SimpleCriterion(fieldName, DefaultOperators.Equals, User.getUserTenantId(dsRequest.getHttpServletRequest())),
                                                                        new IsNullCriterion(fieldName) });
                                                        dsRequest.addToCriteria(ac);
                                                }
                                        }
                                }
                        }
                }
                return dsRequest;
        }

        private static boolean isOuterJoined(String includingField, DataSource ds) {
                DSField includingFieldDSField = ds.getField(includingField);
                String includeFromString = includingFieldDSField.getProperty("includeFrom");

                String includeFromTable = (includeFromString == null || includeFromString.indexOf(".") == -1) ? null : includeFromString.substring(0,
                                includeFromString.indexOf("."));

                if (includeFromTable != null)
                        for (Object fn : ds.getFieldNames()) {
                                String fieldName = fn.toString();
                                DSField dsField = ds.getField(fieldName);
                                if (dsField.getProperty("foreignKey") != null && dsField.getProperty("foreignKey").startsWith(includeFromTable + "."))
                                        return "outer".equals(dsField.getProperty("joinType"));
                        }
                return false;
        }
}
V_LEAD_PRODUCT_ASSIGNED.java (the ServerConstructor), see bold part (commented out setCriteria() works, setAdvancedCriteria() does not).
Code:
package com.lmscompany.lms.server.worker;

import java.util.HashMap;
import java.util.Map;

import com.isomorphic.criteria.AdvancedCriteria;
import com.isomorphic.criteria.Criterion;
import com.isomorphic.criteria.DefaultOperators;
import com.isomorphic.criteria.criterion.SimpleCriterion;
import com.isomorphic.datasource.DSRequest;
import com.isomorphic.datasource.DSResponse;
import com.isomorphic.datasource.DataSource;
import com.lmscompany.lms.server.util.Helper;
import com.lmscompany.lms.shared.type.DatasourceEnum;

import javax.servlet.http.HttpServletRequest;

public class V_LEAD_PRODUCT_ASSIGNED {

        private Long leadId = null;
        private Long productId = null;
        private Long leadProductinterestId = null;

        public DSResponse remove(DSRequest dsRequest, HttpServletRequest servletRequest) throws Exception {
                DSResponse tryExtract = extractRequestData(dsRequest);
                if (tryExtract != null)
                        return tryExtract;

                DSRequest removeProductFromLeadRequest = new DSRequest(DatasourceEnum.T_LEAD_PRODUCTINTEREST.getValue(), DataSource.OP_REMOVE, dsRequest.getRPCManager());
                removeProductFromLeadRequest.setAdvancedCriteria(new AdvancedCriteria(new SimpleCriterion("ID", DefaultOperators.Equals,
                                leadProductinterestId)));
//                removeProductFromLeadRequest.setCriteria("ID", leadProductinterestId);
                DSResponse removeProductFromLeadResponse = removeProductFromLeadRequest.execute();

                if (Helper.oneRow(removeProductFromLeadResponse)) {
                        DSRequest getNewViewStatusRequest = new DSRequest(DatasourceEnum.V_LEAD_PRODUCT_ASSIGNED.getValue(), DataSource.OP_FETCH, dsRequest.getRPCManager());
                        getNewViewStatusRequest.setAdvancedCriteria(new AdvancedCriteria(DefaultOperators.And, new Criterion[] {
                                        new SimpleCriterion("LEAD_ID", DefaultOperators.Equals, leadId),
                                        new SimpleCriterion("PRODUCT_ID", DefaultOperators.Equals, productId) }));
                        return getNewViewStatusRequest.execute();
                } else
                        return new DSResponse().setFailure("Es ist ein Fehler beim Löschen der Produktzuordnung aufgetreten!");
        }
       
        public DSResponse add(DSRequest dsRequest, HttpServletRequest servletRequest) throws Exception {
                DSResponse tryExtract = extractRequestData(dsRequest);
                if (tryExtract != null)
                        return tryExtract;

                DSRequest addProductToLeadRequest = new DSRequest(DatasourceEnum.T_LEAD_PRODUCTINTEREST.getValue(), DataSource.OP_ADD, dsRequest.getRPCManager());
                Map<String, Object> newEntry = new HashMap<String, Object>();
                newEntry.put("LEAD_ID", leadId);
                newEntry.put("PRODUCT_ID", productId);
                addProductToLeadRequest.setValues(newEntry);
               
                DSResponse addProducttoLeadResponse = addProductToLeadRequest.execute();

                if (Helper.oneRow(addProducttoLeadResponse)) {
                        DSRequest getNewViewStatusRequest = new DSRequest(DatasourceEnum.V_LEAD_PRODUCT_ASSIGNED.getValue(), DataSource.OP_FETCH, dsRequest.getRPCManager());
                        getNewViewStatusRequest.setAdvancedCriteria(new AdvancedCriteria(DefaultOperators.And, new Criterion[] {
                                        new SimpleCriterion("LEAD_ID", DefaultOperators.Equals, leadId),
                                        new SimpleCriterion("PRODUCT_ID", DefaultOperators.Equals, productId) }));
                        return getNewViewStatusRequest.execute();
                } else
                        return new DSResponse().setFailure("Es ist ein Fehler beim Löschen der Produktzuordnung aufgetreten!");
        }

        private DSResponse extractRequestData(DSRequest dsRequest) {
                if (dsRequest.getOperationType().equals(DataSource.OP_REMOVE)) {
                        try {
                                leadProductinterestId = new Long(dsRequest.getOldValues().get("LEAD_PRODUCTINTEREST_ID").toString());
                        } catch (Exception e) {
                        }
                        if (leadProductinterestId == null)
                                return new DSResponse().setFailure("Bitte einen Eintrag aus der Liste der zugeordneten Produkte auswählen!");
                }

                try {
                        leadId = new Long(dsRequest.getFieldValue("LEAD_ID").toString());
                } catch (Exception e) {
                }
                if (leadId == null)
                        return new DSResponse().setFailure("Es ist keine Lead-Information vorhanden!");

                try {
                        productId = new Long(dsRequest.getFieldValue("PRODUCT_ID").toString());
                } catch (Exception e) {
                }
                if (productId == null)
                        return new DSResponse().setFailure("Es ist keine Produkt-Information vorhanden!");

                return null;
        }
};
T_LEAD_PRODUCTINTEREST.ds.xml (DELETE is done on this DS)
Code:
<DataSource dbName="Oracle" tableName="T_LEAD_PRODUCTINTEREST" ID="T_LEAD_PRODUCTINTEREST"
        serverType="sql" serverConstructor="com.lmscompany.lms.server.LMSSQLDataSource">
        <fields>
                <field primaryKey="true" hidden="true" name="ID" type="sequence" />
                <field hidden="true" name="TENANT_ID" type="integer" canEdit="false" />
                <field foreignKey="V_USER_CREATED_BY.ID" name="CREATED_BY" title="Erstellt von" type="creator" />
                <field name="CREATED_AT" title="Erstellt am" type="creatorTimestamp" />
                <field foreignKey="V_USER_MODIFIED_BY.ID" name="MODIFIED_BY" title="Geändert von" type="modifier" />
                <field name="MODIFIED_AT" title="Geändert am" type="modifierTimestamp" />
                <field foreignKey="T_LEAD.ID" name="LEAD_ID" type="integer" />
                <field foreignKey="T_PRODUCT.ID" name="PRODUCT_ID" type="integer" />
        </fields>
</DataSource>
Basically, the bug is with setAdvancedCriteria() and you should not need my code to get to the problem.

Best regards,
Blama
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