ADF Query Component

one of the components I find very helpful in ADF is the ADF:QueryComponent.

since you can simply drag the ViewCriteria to the page and add it as a component, and it will be rendered based on the design time metadata.

but it can be a bit stressful, since you cannot edit it as freely as other components.

one such example is the operations allowed in the advaned mode :equal, not equal, is blank ,......

and if for some reason you want to change the text of the operation.

you can achieve this by doing the following:

1. open the desire View Object.

2. define a viewCriteria as needed.

3. in the source mode of the View Object add the following:

 <CompOper
          Name="Between"
          Oper="BETWEEN"
          ToDo="-1"
            MinCardinality="0"
            MaxCardinality="0"/>
          <CompOper
          Name="NotBetween"
          Oper="NOTBETWEEN"
          ToDo="-1"
            MinCardinality="0"
            MaxCardinality="0"/>
          <CompOper
          Name="GreaterThan"
          Oper=">"
          ToDo="-1"
            MinCardinality="0"
            MaxCardinality="0"/>
          <CompOper
          Name="GreaterThanEq"
          Oper=">="
          ToDo="-1"
            MinCardinality="0"
            MaxCardinality="0"/>
          <CompOper
          Name="LessThan"
          Oper="&lt;"
          ToDo="-1"
            MinCardinality="0"
            MaxCardinality="0"/>
          <CompOper
          Name="LessThanEq"
            Oper="&lt;="
          ToDo="-1"
            MinCardinality="0"
            MaxCardinality="0"/>
            <CompOper
          Name="IsNotBlank"
            Oper="ISNOTBLANK"
          ToDo="1"
            MinCardinality="0"
            MaxCardinality="0"
            OperDesc="Employee Does Have ID"/>

inside ViewCriteriaItem.

ToDo=-1 indicates that the operator will not be added, 1 the operator will be added.

OperDesc= the string that will be used in the select item from which you select your operation

for a list of operators see:

http://docs.oracle.com/cd/E15051_01/apirefs.1111/e10653/constant-values.html#oracle.jbo.common.JboCompOper