org.apache.cayenne.access.trans
Class TrimmingQualifierTranslator

java.lang.Object
  org.apache.cayenne.access.trans.QueryAssemblerHelper
      org.apache.cayenne.access.trans.QualifierTranslator
          org.apache.cayenne.access.trans.TrimmingQualifierTranslator

All Implemented Interfaces:

TraversalHandler

Direct Known Subclasses:

DB2QualifierTranslator, PostgresQualifierTranslator

public class TrimmingQualifierTranslator
extends QualifierTranslator

QualifierTranslator that allows translation of qualifiers that perform comparison with CHAR columns. Some databases require trimming the values for this to work.

Author:

Andrei Adamchik

Field Summary

protected java.lang.String

trimFunction

Fields inherited from class org.apache.cayenne.access.trans.QualifierTranslator

matchingObject, objectMatchTranslator, qualBuf, translateParentQual

Fields inherited from class org.apache.cayenne.access.trans.QueryAssemblerHelper

queryAssembler

Constructor Summary

protected	TrimmingQualifierTranslator() Constructor for TrimmingQualifierTranslator.
	TrimmingQualifierTranslator(QueryAssembler queryAssembler, java.lang.String trimFunction) Constructor for TrimmingQualifierTranslator.

Method Summary

java.lang.String	getTrimFunction() Returns the trimFunction.
protected void	processColumn(java.lang.StringBuffer buf, DbAttribute dbAttr) Adds special handling of CHAR columns.
protected void	processColumn(java.lang.StringBuffer buf, DbAttribute dbAttr, DbRelationship rel) Adds special handling of CHAR columns.
void	setTrimFunction(java.lang.String trimFunction) Sets the trimFunction.

Methods inherited from class org.apache.cayenne.access.trans.QualifierTranslator

appendLiteral, appendObjectMatch, detectObjectMatch, doTranslation, endNode, extractQualifier, finishedChild, getObjEntity, isTranslateParentQual, objectNode, parenthesisNeeded, processRelTermination, setTranslateParentQual, startNode

Methods inherited from class org.apache.cayenne.access.trans.QueryAssemblerHelper

appendDbPath, appendLiteralDirect, appendObjPath, getDbEntity, getQueryAssembler, paramsDbType, processColumn, processRelTermination, setQueryAssembler

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

trimFunction

protected java.lang.String trimFunction

Constructor Detail

TrimmingQualifierTranslator

protected TrimmingQualifierTranslator()

Constructor for TrimmingQualifierTranslator.

TrimmingQualifierTranslator

public TrimmingQualifierTranslator(QueryAssembler queryAssembler,
                                   java.lang.String trimFunction)

Constructor for TrimmingQualifierTranslator.

Method Detail

processColumn

protected void processColumn(java.lang.StringBuffer buf,
                             DbAttribute dbAttr)

Adds special handling of CHAR columns.

Overrides:

processColumn in class QueryAssemblerHelper

processColumn

protected void processColumn(java.lang.StringBuffer buf,
                             DbAttribute dbAttr,
                             DbRelationship rel)

Adds special handling of CHAR columns.

Overrides:

processColumn in class QueryAssemblerHelper

getTrimFunction

public java.lang.String getTrimFunction()

Returns the trimFunction.

Returns:

String

setTrimFunction

public void setTrimFunction(java.lang.String trimFunction)

Sets the trimFunction.

Parameters:

trimFunction - The trimFunction to set