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## org.apache.cayenne.dba.openbase
Class OpenBaseQualifierTranslator

    java.lang.Object
      org.apache.cayenne.access.trans.QueryAssemblerHelper
          org.apache.cayenne.access.trans.QualifierTranslator
              org.apache.cayenne.dba.openbase.OpenBaseQualifierTranslator

All Implemented Interfaces:
  TraversalHandler

    public class OpenBaseQualifierTranslator

extends QualifierTranslator

Translates query qualifier to SQL. Used as a helper class by query translators.

Since:
  1.1

Field Summary

Fields inherited from class org.apache.cayenne.access.trans.QualifierTranslator
`caseInsensitive, matchingObject, objectMatchTranslator`

Fields inherited from class org.apache.cayenne.access.trans.QueryAssemblerHelper
`out, queryAssembler, strategy`

Constructor Summary
`OpenBaseQualifierTranslator(QueryAssembler queryAssembler)`

Method Summary
`protected void` | `appendLiteralDirect(Object val, DbAttribute attr, Expression parentExpression)` Appends SQL code to the query buffer to handle `val` as a parameter to the PreparedStatement being built.
`void` | `endNode(Expression node, Expression parentNode)` Called during the traversal after an expression node children processing is finished.
`void` | `finishedChild(Expression node, int childIndex, boolean hasMoreChildren)` Called during traversal after a child of expression has been visited.
`void` | `startNode(Expression node, Expression parentNode)` Called during the traversal before an expression node children processing is started.

Methods inherited from class org.apache.cayenne.access.trans.QualifierTranslator
`appendLiteral, appendObjectMatch, detectObjectMatch, doAppendPart, doAppendPart, extractQualifier, objectNode, operandForBitwiseAnd, operandForBitwiseNot, operandForBitwiseOr, operandForBitwiseXor, parenthesisNeeded, processRelTermination, setCaseInsensitive`

Methods inherited from class org.apache.cayenne.access.trans.QueryAssemblerHelper
`appendDbPath, appendLikeEscapeCharacter, appendObjPath, appendPart, getDbEntity, getObjEntity, paramsDbType, processColumn, processColumnWithQuoteSqlIdentifiers, processRelTermination`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### OpenBaseQualifierTranslator

    public OpenBaseQualifierTranslator(QueryAssembler queryAssembler)

Method Detail

### startNode

    public void startNode(Expression node,
                          Expression parentNode)

  Description copied from interface: `TraversalHandler`
  Called during the traversal before an expression node children processing is started.

  Specified by:
    `startNode` in interface `TraversalHandler`
  Overrides:
    `startNode` in class `QualifierTranslator`

### endNode

    public void endNode(Expression node,
                        Expression parentNode)

  Description copied from interface: `TraversalHandler`
  Called during the traversal after an expression node children processing is finished.

  Specified by:
    `endNode` in interface `TraversalHandler`
  Overrides:
    `endNode` in class `QualifierTranslator`

### appendLiteralDirect

    protected void appendLiteralDirect(Object val,
                                       DbAttribute attr,
                                       Expression parentExpression)
                                throws IOException

  Description copied from class: `QueryAssemblerHelper`
  Appends SQL code to the query buffer to handle `val` as a parameter to the PreparedStatement being built. Adds `val` into QueryAssembler parameter list.

  Overrides:
    `appendLiteralDirect` in class `QueryAssemblerHelper`
  Throws:
    `IOException`

### finishedChild

    public void finishedChild(Expression node,
                              int childIndex,
                              boolean hasMoreChildren)

  Description copied from interface: `TraversalHandler`
  Called during traversal after a child of expression has been visited.

  Specified by:
    `finishedChild` in interface `TraversalHandler`
  Overrides:
    `finishedChild` in class `QualifierTranslator`

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