org.apache.cayenne.access.jdbc
Class EJBQLPathTranslator
java.lang.Object
   org.apache.cayenne.ejbql.EJBQLBaseVisitor
org.apache.cayenne.ejbql.EJBQLBaseVisitor
       org.apache.cayenne.access.jdbc.EJBQLPathTranslator
org.apache.cayenne.access.jdbc.EJBQLPathTranslator
- All Implemented Interfaces: 
- EJBQLExpressionVisitor
- public abstract class EJBQLPathTranslator 
- extends EJBQLBaseVisitor
A translator that walks the relationship/attribute path, appending joins to the query.
- Since:
- 3.0
 
 
 
 
| Methods inherited from class org.apache.cayenne.ejbql.EJBQLBaseVisitor | 
| visitAbs, visitAbstractSchemaName, visitAdd, visitAggregate, visitAll, visitAnd, visitAny, visitAscending, visitAverage, visitBetween, visitBooleanLiteral, visitClassName, visitConcat, visitConstructor, visitConstructorParameter, visitConstructorParameters, visitCount, visitCurrentDate, visitCurrentTime, visitCurrentTimestamp, visitDbPath, visitDecimalLiteral, visitDelete, visitDescending, visitDistinct, visitDivide, visitEquals, visitEscapeCharacter, visitExists, visitFrom, visitFromItem, visitGreaterOrEqual, visitGreaterThan, visitGroupBy, visitHaving, visitIn, visitInnerFetchJoin, visitInnerJoin, visitIntegerLiteral, visitIsEmpty, visitIsNull, visitLength, visitLessOrEqual, visitLessThan, visitLike, visitLocate, visitLower, visitMax, visitMemberOf, visitMin, visitMod, visitMultiply, visitNamedInputParameter, visitNegative, visitNot, visitNotEquals, visitOr, visitOrderBy, visitOrderByItem, visitOuterFetchJoin, visitOuterJoin, visitPatternValue, visitPositionalInputParameter, visitSelect, visitSelectClause, visitSelectExpression, visitSelectExpressions, visitSize, visitSqrt, visitStringLiteral, visitSubselect, visitSubstring, visitSubtract, visitSum, visitTok, visitTrim, visitTrimBoth, visitTrimCharacter, visitTrimLeading, visitTrimTrailing, visitUpdate, visitUpdateField, visitUpdateItem, visitUpdateValue, visitUpper, visitWhere | 
 
| Methods inherited from class java.lang.Object | 
| clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait | 
 
currentEntity
protected ObjEntity currentEntity
lastPathComponent
protected String lastPathComponent
lastAlias
protected String lastAlias
idPath
protected String idPath
joinMarker
protected String joinMarker
fullPath
protected String fullPath
EJBQLPathTranslator
public EJBQLPathTranslator(EJBQLTranslationContext context)
appendMultiColumnPath
protected abstract void appendMultiColumnPath(EJBQLMultiColumnOperand operand)
- 
 
visitPath
public boolean visitPath(EJBQLExpression expression,
                         int finishedChildIndex)
- Description copied from interface: EJBQLExpressionVisitor
- Called on visiting "path" expression and also after visiting every expression
 child.
 
- 
- Specified by:
- visitPathin interface- EJBQLExpressionVisitor
- Overrides:
- visitPathin class- EJBQLBaseVisitor
 
- 
- Parameters:
- expression- a "path" node being visited.
- finishedChildIndex- "-1" when the expression node is visited for the first
            time, before its children; otherwise this is an index of a child just
            visited.
 
visitIdentifier
public boolean visitIdentifier(EJBQLExpression expression)
- 
- Specified by:
- visitIdentifierin interface- EJBQLExpressionVisitor
- Overrides:
- visitIdentifierin class- EJBQLBaseVisitor
 
- 
 
visitIdentificationVariable
public boolean visitIdentificationVariable(EJBQLExpression expression)
- 
- Specified by:
- visitIdentificationVariablein interface- EJBQLExpressionVisitor
- Overrides:
- visitIdentificationVariablein class- EJBQLBaseVisitor
 
- 
 
resolveJoin
protected void resolveJoin(boolean inner)
- 
 
processIntermediatePathComponent
protected void processIntermediatePathComponent()
- 
 
processLastPathComponent
protected void processLastPathComponent()
- 
 
processTerminatingAttribute
protected void processTerminatingAttribute(ObjAttribute attribute)
- 
 
processTerminatingRelationship
protected void processTerminatingRelationship(ObjRelationship relationship)
- 
 
chooseDbRelationship
protected DbRelationship chooseDbRelationship(ObjRelationship relationship)
- Checks if the object relationship is flattened and then chooses
 the corresponding db relationship. The last in idPath if isFlattened and
 the first in list otherwise.
 
- 
- Parameters:
- relationship- the object relationship
- Returns:
- DbRelationship
 
isUsingAliases
public boolean isUsingAliases()
- 
 
setUsingAliases
public void setUsingAliases(boolean usingAliases)
- 
 
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