Bad performance of af:query

Question

I am working on Oracle Jdeveloper 11g Release 1
I have a VO which gets executed when the first page gets loaded. suppose the VO is RuleLibraryVO
I have a view criteria RuleLibraryVOCriteria in the VO which is used in the af:query panel in the page.
When i do search for any attribute using the query panel the VO gets executed again everytime even if the VO is in the memory. This is hampering the performance of my query panel as it is again calling getters for all 2000+ rows and then searching. The VO Criteria used is:
<ViewCriteria
    Name="RuleLibraryVOCriteria"
    ViewObjectName="oracle.sysman.core.gccompliance.model.library.rule.view.RuleLibraryVO"
    Conjunction="AND"
    Mode="3">
    <Properties>
      <CustomProperties>
        <Property
          Name="displayOperators"
          Value="InAdvancedMode"/>
        <Property
          Name="autoExecute"
          Value="true"/>
        <Property
          Name="allowConjunctionOverride"
          Value="true"/>
        <Property
          Name="showInList"
          Value="false"/>
        <Property
          Name="mode"
          Value="Basic"/>
        <Property
          Name="displayName"
          ResId="DEFAULT_SEARCH"/>
      </CustomProperties>
    </Properties>
    <ViewCriteriaRow
      Name="vcrow3"
      UpperColumns="1">
      <ViewCriteriaItem
        Name="RuleDnameTransient"
        ViewAttribute="RuleDnameTransient"
        Operator="CONTAINS"
        Conjunction="AND"
        Required="Optional">
        <CompOper
          Name="LessThan"
          ToDo="-1"
          Oper="&lt;"
          MinCardinality="0"
          MaxCardinality="0"/>
        <CompOper
          Name="LessThanOrEqualTo"
          ToDo="-1"
          Oper="&lt;="
          MinCardinality="0"
          MaxCardinality="0"/>
        <CompOper
          Name="GreaterThan"
          ToDo="-1"
          Oper=">"
          MinCardinality="0"
          MaxCardinality="0"/>
        <CompOper
          Name="GreaterThanOrEqualTo"
          ToDo="-1"
          Oper=">="
          MinCardinality="0"
          MaxCardinality="0"/>
      </ViewCriteriaItem>
      <ViewCriteriaItem
        Name="DescriptionTransient"
        ViewAttribute="DescriptionTransient"
        Operator="CONTAINS"
        Conjunction="AND"
        Required="Optional">
        <CompOper
          Name="LessThan"
          ToDo="-1"
          Oper="&lt;"
          MinCardinality="0"
          MaxCardinality="0"/>
        <CompOper
          Name="LessThanOrEqualTo"
          ToDo="-1"
          Oper="&lt;="
          MinCardinality="0"
          MaxCardinality="0"/>
        <CompOper
          Name="GreaterThan"
          ToDo="-1"
          Oper=">"
          MinCardinality="0"
          MaxCardinality="0"/>
        <CompOper
          Name="GreaterThanOrEqualTo"
          ToDo="-1"
          Oper=">="
          MinCardinality="0"
          MaxCardinality="0"/>
      </ViewCriteriaItem>
      <ViewCriteriaItem
        Name="IsSystem"
        ViewAttribute="IsSystem"
        Operator="="
        Conjunction="AND"
        Required="Optional"/>
      <ViewCriteriaItem
        Name="RuleType"
        ViewAttribute="RuleType"
        Operator="="
        Conjunction="AND"
        Required="Optional"/>
      <ViewCriteriaItem
        Name="TargetType"
        ViewAttribute="TargetType"
        Operator="="
        Conjunction="AND"
        Required="Optional"
        Value=":targetType"
        IsBindVarValue="true"/>
      <ViewCriteriaItem
        Name="KeywordsTransient"
        ViewAttribute="KeywordsTransient"
        Operator="CONTAINS"
        Conjunction="AND"
        Required="Optional"/>
    </ViewCriteriaRow>
  </ViewCriteria>The query panel in jspx is:
<af:query id="qryId2"
                  headerText="#{coregccomplianceuiBundle.COMPLIANCE_SEARCH}"
                  disclosed="false"
                  value="#{bindings.RuleLibraryVOCriteriaQuery.queryDescriptor}"
                  model="#{bindings.RuleLibraryVOCriteriaQuery.queryModel}"
                  queryListener="#{bindings.RuleLibraryVOCriteriaQuery.processQuery}"
                  queryOperationListener="#{bindings.RuleLibraryVOCriteriaQuery.processQueryOperation}"
                  resultComponentId="::pc1:ruleLib" rows="3" maxColumns="2"
                  saveQueryMode="hidden"/>How can i optimize the search behavior so that it only searches using the vo data already loaded in memory.

Answer 1

Hi Frank,
Thanks for quick response,
As suggested i made the Query Execution Mode to - In-Memory. And my view criteria now is:
<ViewCriteria
    Name="RuleLibraryVOCriteria"
    ViewObjectName="oracle.sysman.core.gccompliance.model.library.rule.view.RuleLibraryVO"
    Conjunction="AND"
    Mode="2">
    <Properties>
      <CustomProperties>
        <Property
          Name="displayOperators"
          Value="InAdvancedMode"/>
        <Property
          Name="autoExecute"
          Value="true"/>
        <Property
          Name="allowConjunctionOverride"
          Value="true"/>
        <Property
          Name="showInList"
          Value="false"/>
        <Property
          Name="mode"
          Value="Basic"/>
        <Property
          Name="displayName"
          ResId="DEFAULT_SEARCH"/>
      </CustomProperties>
    </Properties>
    <ViewCriteriaRow
      Name="vcrow3"
      UpperColumns="1">
      <ViewCriteriaItem
        Name="RuleDnameTransient"
        ViewAttribute="RuleDnameTransient"
        Operator="CONTAINS"
        Conjunction="AND"
        Required="Optional">
        <CompOper
          Name="LessThan"
          ToDo="-1"
          Oper="&lt;"
          MinCardinality="0"
          MaxCardinality="0"/>
        <CompOper
          Name="LessThanOrEqualTo"
          ToDo="-1"
          Oper="&lt;="
          MinCardinality="0"
          MaxCardinality="0"/>
        <CompOper
          Name="GreaterThan"
          ToDo="-1"
          Oper=">"
          MinCardinality="0"
          MaxCardinality="0"/>
        <CompOper
          Name="GreaterThanOrEqualTo"
          ToDo="-1"
          Oper=">="
          MinCardinality="0"
          MaxCardinality="0"/>
      </ViewCriteriaItem>
      <ViewCriteriaItem
        Name="DescriptionTransient"
        ViewAttribute="DescriptionTransient"
        Operator="CONTAINS"
        Conjunction="AND"
        Required="Optional">
        <CompOper
          Name="LessThan"
          ToDo="-1"
          Oper="&lt;"
          MinCardinality="0"
          MaxCardinality="0"/>
        <CompOper
          Name="LessThanOrEqualTo"
          ToDo="-1"
          Oper="&lt;="
          MinCardinality="0"
          MaxCardinality="0"/>
        <CompOper
          Name="GreaterThan"
          ToDo="-1"
          Oper=">"
          MinCardinality="0"
          MaxCardinality="0"/>
        <CompOper
          Name="GreaterThanOrEqualTo"
          ToDo="-1"
          Oper=">="
          MinCardinality="0"
          MaxCardinality="0"/>
      </ViewCriteriaItem>
      <ViewCriteriaItem
        Name="IsSystem"
        ViewAttribute="IsSystem"
        Operator="="
        Conjunction="AND"
        Required="Optional"/>
      <ViewCriteriaItem
        Name="RuleType"
        ViewAttribute="RuleType"
        Operator="="
        Conjunction="AND"
        Required="Optional"/>
      <ViewCriteriaItem
        Name="TargetType"
        ViewAttribute="TargetType"
        Operator="="
        Conjunction="AND"
        Required="Optional"
        Value=":targetType"
        IsBindVarValue="true"/>
      <ViewCriteriaItem
        Name="KeywordsTransient"
        ViewAttribute="*KeywordsTransient*"
        Operator="CONTAINS"
        Conjunction="AND"
        Required="Optional"
        UpperColumns="0"/>
    </ViewCriteriaRow>
  </ViewCriteria>
  The performance hit is when i search for attribute: KeywordsTransient.
The attribute is as :
  <ViewAttribute
    Name="KeywordsTransient"
    IsSelected="false"
    IsPersistent="false"
    PrecisionRule="true"
    Type="java.lang.String"
    ColumnType="VARCHAR2"
    AliasName="VIEW_ATTR"
    SQLType="VARCHAR">
    <RecalcCondition><![CDATA[return (adf.object.isAttributeChanged("Keywords")]]></RecalcCondition>
    <TransientExpression><![CDATA[object.Keywords]]></TransientExpression>
    <Dependencies>
      <Item
        Value="Keywords"/>
    </Dependencies>
    <Properties>
      <SchemaBasedProperties>
        <LABEL
          ResId="KEYWORDS"/>
      </SchemaBasedProperties>
    </Properties>
  </ViewAttribute>
  This attribute is dependent on Keywords attribute of the VO , The keyword getter is as below:
     * Gets the attribute value for the calculated attribute Keywords.
     * @return the Keywords
    public String getKeywords() {
        if (((String) getAttributeInternal(KEYWORDS)) == null)
                    long startTime = System.currentTimeMillis();
                    String keyword = "";
                    CSRUtil csrUtil = new CSRUtil();
                   // get the keyword name list from RuleKeywordTableVO which stores ruleGuid to KeywordName mapping. This VO is Loaded in memory as soon as bean initailizes.
                    Set<String> keywordList =
                        csrUtil.getRuleKeywordListFromKeywordMapVO(getRuleGuid());
                    if (keywordList != null)
                        Iterator rowIter = keywordList.iterator();
                        while (rowIter.hasNext())
                            keyword =
                                    keyword.concat(csrUtil.getKeywordNlsIdFromTable((String) rowIter.next())) +
                    if (keyword.endsWith(", "))
                        keyword = keyword.substring(0, keyword.length() - 2);
                    setKeywords(keyword);
                    setKeywordsTransient(keyword);
                    long endTime = System.currentTimeMillis();
                    logger.severe("Time taken for this rule in millis : "+ (endTime-startTime));
                return (String) getAttributeInternal(KEYWORDS);
  This getter is creating keyword list using nlsid translation based on other tables data for a rule.
Also, I have loaded the rule vo data in memory using invokeAction on my page as below:
    <invokeAction id="ExecuteRuleInvoke" Binds="ExecuteRULE"
                  Refresh="renderModel" RefreshCondition="#{sdk_core_uifwk_refresh_ctrl.executeNeeded}"/>
     <action IterBinding="RuleLibraryVO1Iterator" id="ExecuteRULE"
            InstanceName="ComplianceLibraryAMDataControl.RuleLibraryVO1"
            DataControl="ComplianceLibraryAMDataControl"
            RequiresUpdateModel="true" Action="iteratorExecute"/>
  So now when i search for a keywordTransient attribute using query panel the getter is always called for keywords even if the VO data is in memory.
So what am i missing, is the data loaded by invokeAction not visible to the query, or i have to use some other optimization.