org.apache.cayenne.dba.openbase
Class OpenBaseQualifierTranslator

java.lang.Object
  extended by org.apache.cayenne.access.trans.QueryAssemblerHelper
      extended by org.apache.cayenne.access.trans.QualifierTranslator
          extended by 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
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, parenthesisNeeded, processRelTermination
 
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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