Package org.apache.cayenne.access.translator.select

Class TrimmingQualifierTranslator

java.lang.Object

org.apache.cayenne.access.translator.select.QueryAssemblerHelper

org.apache.cayenne.access.translator.select.QualifierTranslator

org.apache.cayenne.access.translator.select.TrimmingQualifierTranslator

All Implemented Interfaces:

TraversalHandler

Direct Known Subclasses:

DB2QualifierTranslator, DerbyQualifierTranslator, HSQLQualifierTranslator, OracleQualifierTranslator, 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.

Field Summary

Fields

Modifier and Type	Field	Description
protected String	trimFunction

Fields inherited from class org.apache.cayenne.access.translator.select.QualifierTranslator

caseInsensitive, matchingObject, objectMatchTranslator, qualifier, useAliasForExpressions, waitingForEndNode

Fields inherited from class org.apache.cayenne.access.translator.select.QueryAssemblerHelper

out, queryAssembler, strategy

Constructor Summary

Constructors

Constructor	Description
TrimmingQualifierTranslator(QueryAssembler queryAssembler, String trimFunction)	Constructor for TrimmingQualifierTranslator.

Method Summary

Modifier and Type	Method	Description
String	getTrimFunction()	Returns the trimFunction.
protected void	processColumn(DbAttribute dbAttr)	Adds special handling of CHAR columns.
protected void	processColumnWithQuoteSqlIdentifiers(DbAttribute dbAttr, Expression pathExp)	Adds special handling of CHAR columns.
void	setTrimFunction(String trimFunction)	Sets the trimFunction.

Methods inherited from class org.apache.cayenne.access.translator.select.QualifierTranslator

appendExtractFunction, appendFunction, appendFunctionArg, appendFunctionArgDivider, appendLiteral, appendObjectMatch, clearLastFunctionArgDivider, detectObjectMatch, doAppendPart, doAppendPart, endNode, extractQualifier, finishedChild, objectNode, operandForBitwiseAnd, operandForBitwiseLeftShift, operandForBitwiseNot, operandForBitwiseOr, operandForBitwiseRightShift, operandForBitwiseXor, parenthesisNeeded, processRelTermination, setCaseInsensitive, setQualifier, setUseAliasForExpressions, startNode

Methods inherited from class org.apache.cayenne.access.translator.select.QueryAssemblerHelper

appendDbPath, appendLikeEscapeCharacter, appendLiteralDirect, appendObjPath, appendPart, getDbEntity, getObjEntity, paramsDbType, processRelTermination, setForceJoinForRelations

Methods inherited from class java.lang.Object

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

Field Details

trimFunction

protected String trimFunction

Constructor Details

TrimmingQualifierTranslator

public TrimmingQualifierTranslator(QueryAssembler queryAssembler,
String trimFunction)

Constructor for TrimmingQualifierTranslator.

Method Details

processColumn

protected void processColumn(DbAttribute dbAttr)

Adds special handling of CHAR columns.

Overrides:

processColumn in class QueryAssemblerHelper

processColumnWithQuoteSqlIdentifiers

protected void processColumnWithQuoteSqlIdentifiers(DbAttribute dbAttr,
Expression pathExp)

Adds special handling of CHAR columns.

Overrides:

processColumnWithQuoteSqlIdentifiers in class QueryAssemblerHelper

getTrimFunction

public String getTrimFunction()

Returns the trimFunction.

Returns:

String

setTrimFunction

public void setTrimFunction(String trimFunction)

Sets the trimFunction.

Parameters:

trimFunction - The trimFunction to set