Class EJBQLSelectColumnsTranslator
- java.lang.Object
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- org.apache.cayenne.ejbql.EJBQLBaseVisitor
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- org.apache.cayenne.access.translator.ejbql.EJBQLSelectColumnsTranslator
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- All Implemented Interfaces:
EJBQLExpressionVisitor
public class EJBQLSelectColumnsTranslator extends EJBQLBaseVisitor
Translator of the EJBQL select clause.- Since:
- 3.0
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Field Summary
Fields Modifier and Type Field Description protected EJBQLTranslationContext
context
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Fields inherited from class org.apache.cayenne.ejbql.EJBQLBaseVisitor
continueFlag
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Constructor Summary
Constructors Modifier Constructor Description protected
EJBQLSelectColumnsTranslator(EJBQLTranslationContext context)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
appendColumn(String javaType, String alias, DbAttribute dbAttribute, String columnAlias)
boolean
visitAggregate(EJBQLExpression expression)
boolean
visitDbPath(EJBQLExpression expression, int finishedChildIndex)
boolean
visitIdentifier(EJBQLExpression expression)
boolean
visitPath(EJBQLExpression expression, int finishedChildIndex)
Called on visiting "path" expression and also after visiting every expression child.boolean
visitSelectExpression(EJBQLExpression expression)
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Methods inherited from class org.apache.cayenne.ejbql.EJBQLBaseVisitor
visitAbs, visitAbstractSchemaName, visitAdd, visitAll, visitAnd, visitAny, visitAscending, visitAverage, visitBetween, visitBooleanLiteral, visitClassName, visitConcat, visitConstructor, visitConstructorParameter, visitConstructorParameters, visitCount, visitCurrentDate, visitCurrentTime, visitCurrentTimestamp, visitDecimalLiteral, visitDelete, visitDescending, visitDistinct, visitDivide, visitEquals, visitEscapeCharacter, visitExists, visitFrom, visitFromItem, visitGreaterOrEqual, visitGreaterThan, visitGroupBy, visitHaving, visitIdentificationVariable, visitIn, visitInnerFetchJoin, visitInnerJoin, visitIntegerLiteral, visitIsEmpty, visitIsNull, visitLength, visitLessOrEqual, visitLessThan, visitLike, visitLocate, visitLower, visitMax, visitMemberOf, visitMin, visitMod, visitMultiply, visitNamedInputParameter, visitNamedInputParameterForIn, visitNegative, visitNot, visitNotEquals, visitOr, visitOrderBy, visitOrderByItem, visitOuterFetchJoin, visitOuterJoin, visitPatternValue, visitPositionalInputParameter, visitPositionalInputParameterForIn, visitSelect, visitSelectClause, visitSelectExpressions, visitSize, visitSqrt, visitStringLiteral, visitSubselect, visitSubstring, visitSubtract, visitSum, visitTok, visitTrim, visitTrimBoth, visitTrimCharacter, visitTrimLeading, visitTrimTrailing, visitUpdate, visitUpdateField, visitUpdateItem, visitUpdateValue, visitUpper, visitWhere
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Field Detail
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context
protected EJBQLTranslationContext context
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Constructor Detail
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EJBQLSelectColumnsTranslator
protected EJBQLSelectColumnsTranslator(EJBQLTranslationContext context)
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Method Detail
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visitSelectExpression
public boolean visitSelectExpression(EJBQLExpression expression)
- Specified by:
visitSelectExpression
in interfaceEJBQLExpressionVisitor
- Overrides:
visitSelectExpression
in classEJBQLBaseVisitor
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visitAggregate
public boolean visitAggregate(EJBQLExpression expression)
- Specified by:
visitAggregate
in interfaceEJBQLExpressionVisitor
- Overrides:
visitAggregate
in classEJBQLBaseVisitor
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visitDbPath
public boolean visitDbPath(EJBQLExpression expression, int finishedChildIndex)
- Specified by:
visitDbPath
in interfaceEJBQLExpressionVisitor
- Overrides:
visitDbPath
in classEJBQLBaseVisitor
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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:
visitPath
in interfaceEJBQLExpressionVisitor
- Overrides:
visitPath
in classEJBQLBaseVisitor
- 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.
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visitIdentifier
public boolean visitIdentifier(EJBQLExpression expression)
- Specified by:
visitIdentifier
in interfaceEJBQLExpressionVisitor
- Overrides:
visitIdentifier
in classEJBQLBaseVisitor
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appendColumn
public void appendColumn(String javaType, String alias, DbAttribute dbAttribute, String columnAlias)
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