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## org.apache.cayenne.ejbql
Class EJBQLBaseVisitor

    java.lang.Object
      org.apache.cayenne.ejbql.EJBQLBaseVisitor

All Implemented Interfaces:
  EJBQLExpressionVisitor

Direct Known Subclasses:
  EJBQLConditionTranslator, EJBQLDbPathTranslator, EJBQLDeleteTranslator, EJBQLFromTranslator, EJBQLPathTranslator, EJBQLSelectColumnsTranslator, EJBQLSelectTranslator

    public class EJBQLBaseVisitor

extends Object
implements EJBQLExpressionVisitor

A noop implementation of the EJBQL visitor that returns same preset boolean value from all methods. Intended for subclassing.

Since:
  3.0

Field Summary
`protected boolean` | `continueFlag`

Constructor Summary
`EJBQLBaseVisitor()`
`EJBQLBaseVisitor(boolean continueFlag)`

Method Summary
`boolean` | `visitAbs(EJBQLExpression expression, int finishedChildIndex)`
`boolean` | `visitAbstractSchemaName(EJBQLExpression expression)`
`boolean` | `visitAdd(EJBQLExpression expression, int finishedChildIndex)` Called on visiting "add" expression and also after visiting every expression child.
`boolean` | `visitAggregate(EJBQLExpression expression)`
`boolean` | `visitAll(EJBQLExpression expression)`
`boolean` | `visitAnd(EJBQLExpression expression, int finishedChildIndex)` Called on visiting "and" expression and also after visiting every expression child.
`boolean` | `visitAny(EJBQLExpression expression)`
`boolean` | `visitAscending(EJBQLExpression expression)`
`boolean` | `visitAverage(EJBQLAggregateColumn expression)`
`boolean` | `visitBetween(EJBQLExpression expression, int finishedChildIndex)` Called on visiting "between" expression and also after visiting every expression child.
`boolean` | `visitBooleanLiteral(EJBQLExpression expression)`
`boolean` | `visitClassName(EJBQLExpression expression)`
`boolean` | `visitConcat(EJBQLExpression expression, int finishedChildIndex)`
`boolean` | `visitConstructor(EJBQLExpression expression)`
`boolean` | `visitConstructorParameter(EJBQLExpression expression)`
`boolean` | `visitConstructorParameters(EJBQLExpression expression)`
`boolean` | `visitCount(EJBQLAggregateColumn expression)`
`boolean` | `visitCurrentDate(EJBQLExpression expression)`
`boolean` | `visitCurrentTime(EJBQLExpression expression)`
`boolean` | `visitCurrentTimestamp(EJBQLExpression expression)`
`boolean` | `visitDbPath(EJBQLExpression expression, int finishedChildIndex)`
`boolean` | `visitDecimalLiteral(EJBQLDecimalLiteral expression)`
`boolean` | `visitDelete(EJBQLExpression expression)`
`boolean` | `visitDescending(EJBQLExpression expression)`
`boolean` | `visitDistinct(EJBQLExpression expression)`
`boolean` | `visitDivide(EJBQLExpression expression, int finishedChildIndex)` Called on visiting "divide" expression and also after visiting every expression child.
`boolean` | `visitEquals(EJBQLExpression expression, int finishedChildIndex)` Called on visiting "equals" expression and also after visiting every expression child.
`boolean` | `visitEscapeCharacter(EJBQLExpression expression)`
`boolean` | `visitExists(EJBQLExpression expression)`
`boolean` | `visitFrom(EJBQLExpression expression, int finishedChildIndex)`
`boolean` | `visitFromItem(EJBQLFromItem expression, int finishedChildIndex)`
`boolean` | `visitGreaterOrEqual(EJBQLExpression expression, int finishedChildIndex)` Called on visiting ">=" expression and also after visiting every expression child.
`boolean` | `visitGreaterThan(EJBQLExpression expression, int finishedChildIndex)` Called on visiting ">=" expression and also after visiting every expression child.
`boolean` | `visitGroupBy(EJBQLExpression expression)`
`boolean` | `visitHaving(EJBQLExpression expression)`
`boolean` | `visitIdentificationVariable(EJBQLExpression expression)`
`boolean` | `visitIdentifier(EJBQLExpression expression)`
`boolean` | `visitIn(EJBQLExpression expression, int finishedChildIndex)`
`boolean` | `visitInnerFetchJoin(EJBQLJoin join)`
`boolean` | `visitInnerJoin(EJBQLJoin join)`
`boolean` | `visitIntegerLiteral(EJBQLIntegerLiteral expression)`
`boolean` | `visitIsEmpty(EJBQLExpression expression)`
`boolean` | `visitIsNull(EJBQLExpression expression, int finishedChildIndex)`
`boolean` | `visitLength(EJBQLExpression expression, int finishedChildIndex)`
`boolean` | `visitLessOrEqual(EJBQLExpression expression, int finishedChildIndex)` Called on visiting "<=" expression and also after visiting every expression child.
`boolean` | `visitLessThan(EJBQLExpression expression, int finishedChildIndex)` Called on visiting "<" expression and also after visiting every expression child.
`boolean` | `visitLike(EJBQLExpression expression, int finishedChildIndex)` Called on visiting "LIKE" expression and also after visiting every expression child.
`boolean` | `visitLocate(EJBQLExpression expression, int finishedChildIndex)`
`boolean` | `visitLower(EJBQLExpression expression, int finishedChildIndex)`
`boolean` | `visitMax(EJBQLAggregateColumn expression)`
`boolean` | `visitMemberOf(EJBQLExpression expression)`
`boolean` | `visitMin(EJBQLAggregateColumn expression)`
`boolean` | `visitMod(EJBQLExpression expression, int finishedChildIndex)`
`boolean` | `visitMultiply(EJBQLExpression expression, int finishedChildIndex)` Called on visiting "*" expression and also after visiting every expression child.
`boolean` | `visitNamedInputParameter(EJBQLExpression expression)`
`boolean` | `visitNegative(EJBQLExpression expression)`
`boolean` | `visitNot(EJBQLExpression expression)`
`boolean` | `visitNotEquals(EJBQLExpression expression, int finishedChildIndex)` Called on visiting "!=" expression and also after visiting every expression child.
`boolean` | `visitOr(EJBQLExpression expression, int finishedChildIndex)` Called on visiting "or" expression and also after visiting every expression child.
`boolean` | `visitOrderBy(EJBQLExpression expression)`
`boolean` | `visitOrderByItem(EJBQLExpression expression)`
`boolean` | `visitOuterFetchJoin(EJBQLJoin join)`
`boolean` | `visitOuterJoin(EJBQLJoin join)`
`boolean` | `visitPath(EJBQLExpression expression, int finishedChildIndex)` Called on visiting "path" expression and also after visiting every expression child.
`boolean` | `visitPatternValue(EJBQLExpression expression)`
`boolean` | `visitPositionalInputParameter(EJBQLPositionalInputParameter expression)`
`boolean` | `visitSelect(EJBQLExpression expression)`
`boolean` | `visitSelectClause(EJBQLExpression expression)`
`boolean` | `visitSelectExpression(EJBQLExpression expression)`
`boolean` | `visitSelectExpressions(EJBQLExpression expression)`
`boolean` | `visitSize(EJBQLExpression expression)`
`boolean` | `visitSqrt(EJBQLExpression expression, int finishedChildIndex)`
`boolean` | `visitStringLiteral(EJBQLExpression expression)`
`boolean` | `visitSubselect(EJBQLExpression expression)`
`boolean` | `visitSubstring(EJBQLExpression expression, int finishedChildIndex)`
`boolean` | `visitSubtract(EJBQLExpression expression, int finishedChildIndex)` Called on visiting "subtract" expression and also after visiting every expression child.
`boolean` | `visitSum(EJBQLAggregateColumn expression)`
`boolean` | `visitTok(EJBQLExpression expression)`
`boolean` | `visitTrim(EJBQLExpression expression, int finishedChildIndex)`
`boolean` | `visitTrimBoth(EJBQLExpression expression)`
`boolean` | `visitTrimCharacter(EJBQLExpression expression)`
`boolean` | `visitTrimLeading(EJBQLExpression expression)`
`boolean` | `visitTrimTrailing(EJBQLExpression expression)`
`boolean` | `visitUpdate(EJBQLExpression expression)`
`boolean` | `visitUpdateField(EJBQLExpression expression, int finishedChildIndex)`
`boolean` | `visitUpdateItem(EJBQLExpression expression, int finishedChildIndex)`
`boolean` | `visitUpdateValue(EJBQLExpression expression)`
`boolean` | `visitUpper(EJBQLExpression expression, int finishedChildIndex)`
`boolean` | `visitWhere(EJBQLExpression expression)`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### continueFlag

    protected boolean continueFlag

Constructor Detail

### EJBQLBaseVisitor

    public EJBQLBaseVisitor()

### EJBQLBaseVisitor

    public EJBQLBaseVisitor(boolean continueFlag)

Method Detail

### visitAbs

    public boolean visitAbs(EJBQLExpression expression,
                            int finishedChildIndex)

  Specified by:
    `visitAbs` in interface `EJBQLExpressionVisitor`

### visitAbstractSchemaName

    public boolean visitAbstractSchemaName(EJBQLExpression expression)

  Specified by:
    `visitAbstractSchemaName` in interface `EJBQLExpressionVisitor`

### visitAdd

    public boolean visitAdd(EJBQLExpression expression,
                            int finishedChildIndex)

  Description copied from interface: `EJBQLExpressionVisitor`
  Called on visiting "add" expression and also after visiting every expression child.

  Specified by:
    `visitAdd` in interface `EJBQLExpressionVisitor`
  Parameters:
    `expression` - an "add" 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.

### visitAggregate

    public boolean visitAggregate(EJBQLExpression expression)

  Specified by:
    `visitAggregate` in interface `EJBQLExpressionVisitor`

### visitAll

    public boolean visitAll(EJBQLExpression expression)

  Specified by:
    `visitAll` in interface `EJBQLExpressionVisitor`

### visitAnd

    public boolean visitAnd(EJBQLExpression expression,
                            int finishedChildIndex)

  Description copied from interface: `EJBQLExpressionVisitor`
  Called on visiting "and" expression and also after visiting every expression child.

  Specified by:
    `visitAnd` in interface `EJBQLExpressionVisitor`
  Parameters:
    `expression` - an "and" 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.

### visitAny

    public boolean visitAny(EJBQLExpression expression)

  Specified by:
    `visitAny` in interface `EJBQLExpressionVisitor`

### visitAscending

    public boolean visitAscending(EJBQLExpression expression)

  Specified by:
    `visitAscending` in interface `EJBQLExpressionVisitor`

### visitAverage

    public boolean visitAverage(EJBQLAggregateColumn expression)

  Specified by:
    `visitAverage` in interface `EJBQLExpressionVisitor`

### visitBetween

    public boolean visitBetween(EJBQLExpression expression,
                                int finishedChildIndex)

  Description copied from interface: `EJBQLExpressionVisitor`
  Called on visiting "between" expression and also after visiting every expression child.

  Specified by:
    `visitBetween` in interface `EJBQLExpressionVisitor`
  Parameters:
    `expression` - an "between" 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.

### visitBooleanLiteral

    public boolean visitBooleanLiteral(EJBQLExpression expression)

  Specified by:
    `visitBooleanLiteral` in interface `EJBQLExpressionVisitor`

### visitClassName

    public boolean visitClassName(EJBQLExpression expression)

  Specified by:
    `visitClassName` in interface `EJBQLExpressionVisitor`

### visitConcat

    public boolean visitConcat(EJBQLExpression expression,
                               int finishedChildIndex)

  Specified by:
    `visitConcat` in interface `EJBQLExpressionVisitor`

### visitConstructor

    public boolean visitConstructor(EJBQLExpression expression)

  Specified by:
    `visitConstructor` in interface `EJBQLExpressionVisitor`

### visitConstructorParameter

    public boolean visitConstructorParameter(EJBQLExpression expression)

  Specified by:
    `visitConstructorParameter` in interface `EJBQLExpressionVisitor`

### visitConstructorParameters

    public boolean visitConstructorParameters(EJBQLExpression expression)

  Specified by:
    `visitConstructorParameters` in interface `EJBQLExpressionVisitor`

### visitCount

    public boolean visitCount(EJBQLAggregateColumn expression)

  Specified by:
    `visitCount` in interface `EJBQLExpressionVisitor`

### visitCurrentDate

    public boolean visitCurrentDate(EJBQLExpression expression)

  Specified by:
    `visitCurrentDate` in interface `EJBQLExpressionVisitor`

### visitCurrentTime

    public boolean visitCurrentTime(EJBQLExpression expression)

  Specified by:
    `visitCurrentTime` in interface `EJBQLExpressionVisitor`

### visitCurrentTimestamp

    public boolean visitCurrentTimestamp(EJBQLExpression expression)

  Specified by:
    `visitCurrentTimestamp` in interface `EJBQLExpressionVisitor`

### visitDecimalLiteral

    public boolean visitDecimalLiteral(EJBQLDecimalLiteral expression)

  Specified by:
    `visitDecimalLiteral` in interface `EJBQLExpressionVisitor`

### visitDelete

    public boolean visitDelete(EJBQLExpression expression)

  Specified by:
    `visitDelete` in interface `EJBQLExpressionVisitor`

### visitDescending

    public boolean visitDescending(EJBQLExpression expression)

  Specified by:
    `visitDescending` in interface `EJBQLExpressionVisitor`

### visitDbPath

    public boolean visitDbPath(EJBQLExpression expression,
                               int finishedChildIndex)

  Specified by:
    `visitDbPath` in interface `EJBQLExpressionVisitor`

### visitDistinct

    public boolean visitDistinct(EJBQLExpression expression)

  Specified by:
    `visitDistinct` in interface `EJBQLExpressionVisitor`

### visitDivide

    public boolean visitDivide(EJBQLExpression expression,
                               int finishedChildIndex)

  Description copied from interface: `EJBQLExpressionVisitor`
  Called on visiting "divide" expression and also after visiting every expression child.

  Specified by:
    `visitDivide` in interface `EJBQLExpressionVisitor`
  Parameters:
    `expression` - an "divide" 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.

### visitEquals

    public boolean visitEquals(EJBQLExpression expression,
                               int finishedChildIndex)

  Description copied from interface: `EJBQLExpressionVisitor`
  Called on visiting "equals" expression and also after visiting every expression child.

  Specified by:
    `visitEquals` in interface `EJBQLExpressionVisitor`
  Parameters:
    `expression` - an "equals" 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.

### visitEscapeCharacter

    public boolean visitEscapeCharacter(EJBQLExpression expression)

  Specified by:
    `visitEscapeCharacter` in interface `EJBQLExpressionVisitor`

### visitExists

    public boolean visitExists(EJBQLExpression expression)

  Specified by:
    `visitExists` in interface `EJBQLExpressionVisitor`

### visitFrom

    public boolean visitFrom(EJBQLExpression expression,
                             int finishedChildIndex)

  Specified by:
    `visitFrom` in interface `EJBQLExpressionVisitor`

### visitFromItem

    public boolean visitFromItem(EJBQLFromItem expression,
                                 int finishedChildIndex)

  Specified by:
    `visitFromItem` in interface `EJBQLExpressionVisitor`

### visitGreaterOrEqual

    public boolean visitGreaterOrEqual(EJBQLExpression expression,
                                       int finishedChildIndex)

  Description copied from interface: `EJBQLExpressionVisitor`
  Called on visiting ">=" expression and also after visiting every expression child.

  Specified by:
    `visitGreaterOrEqual` in interface `EJBQLExpressionVisitor`
  Parameters:
    `expression` - an ">=" 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.

### visitGreaterThan

    public boolean visitGreaterThan(EJBQLExpression expression,
                                    int finishedChildIndex)

  Description copied from interface: `EJBQLExpressionVisitor`
  Called on visiting ">=" expression and also after visiting every expression child.

  Specified by:
    `visitGreaterThan` in interface `EJBQLExpressionVisitor`
  Parameters:
    `expression` - an ">=" 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.

### visitGroupBy

    public boolean visitGroupBy(EJBQLExpression expression)

  Specified by:
    `visitGroupBy` in interface `EJBQLExpressionVisitor`

### visitHaving

    public boolean visitHaving(EJBQLExpression expression)

  Specified by:
    `visitHaving` in interface `EJBQLExpressionVisitor`

### visitIdentificationVariable

    public boolean visitIdentificationVariable(EJBQLExpression expression)

  Specified by:
    `visitIdentificationVariable` in interface `EJBQLExpressionVisitor`

### visitIdentifier

    public boolean visitIdentifier(EJBQLExpression expression)

  Specified by:
    `visitIdentifier` in interface `EJBQLExpressionVisitor`

### visitIn

    public boolean visitIn(EJBQLExpression expression,
                           int finishedChildIndex)

  Specified by:
    `visitIn` in interface `EJBQLExpressionVisitor`

### visitInnerFetchJoin

    public boolean visitInnerFetchJoin(EJBQLJoin join)

  Specified by:
    `visitInnerFetchJoin` in interface `EJBQLExpressionVisitor`

### visitInnerJoin

    public boolean visitInnerJoin(EJBQLJoin join)

  Specified by:
    `visitInnerJoin` in interface `EJBQLExpressionVisitor`

### visitIntegerLiteral

    public boolean visitIntegerLiteral(EJBQLIntegerLiteral expression)

  Specified by:
    `visitIntegerLiteral` in interface `EJBQLExpressionVisitor`

### visitIsEmpty

    public boolean visitIsEmpty(EJBQLExpression expression)

  Specified by:
    `visitIsEmpty` in interface `EJBQLExpressionVisitor`

### visitIsNull

    public boolean visitIsNull(EJBQLExpression expression,
                               int finishedChildIndex)

  Specified by:
    `visitIsNull` in interface `EJBQLExpressionVisitor`

### visitLength

    public boolean visitLength(EJBQLExpression expression,
                               int finishedChildIndex)

  Specified by:
    `visitLength` in interface `EJBQLExpressionVisitor`

### visitLessOrEqual

    public boolean visitLessOrEqual(EJBQLExpression expression,
                                    int finishedChildIndex)

  Description copied from interface: `EJBQLExpressionVisitor`
  Called on visiting "<=" expression and also after visiting every expression child.

  Specified by:
    `visitLessOrEqual` in interface `EJBQLExpressionVisitor`
  Parameters:
    `expression` - an "<=" 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.

### visitLessThan

    public boolean visitLessThan(EJBQLExpression expression,
                                 int finishedChildIndex)

  Description copied from interface: `EJBQLExpressionVisitor`
  Called on visiting "<" expression and also after visiting every expression child.

  Specified by:
    `visitLessThan` in interface `EJBQLExpressionVisitor`
  Parameters:
    `expression` - an "<" 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.

### visitLike

    public boolean visitLike(EJBQLExpression expression,
                             int finishedChildIndex)

  Description copied from interface: `EJBQLExpressionVisitor`
  Called on visiting "LIKE" expression and also after visiting every expression child.

  Specified by:
    `visitLike` in interface `EJBQLExpressionVisitor`
  Parameters:
    `expression` - an "LIKE" 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.

### visitLocate

    public boolean visitLocate(EJBQLExpression expression,
                               int finishedChildIndex)

  Specified by:
    `visitLocate` in interface `EJBQLExpressionVisitor`

### visitLower

    public boolean visitLower(EJBQLExpression expression,
                              int finishedChildIndex)

  Specified by:
    `visitLower` in interface `EJBQLExpressionVisitor`

### visitMax

    public boolean visitMax(EJBQLAggregateColumn expression)

  Specified by:
    `visitMax` in interface `EJBQLExpressionVisitor`

### visitMemberOf

    public boolean visitMemberOf(EJBQLExpression expression)

  Specified by:
    `visitMemberOf` in interface `EJBQLExpressionVisitor`

### visitMin

    public boolean visitMin(EJBQLAggregateColumn expression)

  Specified by:
    `visitMin` in interface `EJBQLExpressionVisitor`

### visitMod

    public boolean visitMod(EJBQLExpression expression,
                            int finishedChildIndex)

  Specified by:
    `visitMod` in interface `EJBQLExpressionVisitor`

### visitMultiply

    public boolean visitMultiply(EJBQLExpression expression,
                                 int finishedChildIndex)

  Description copied from interface: `EJBQLExpressionVisitor`
  Called on visiting "*" expression and also after visiting every expression child.

  Specified by:
    `visitMultiply` in interface `EJBQLExpressionVisitor`
  Parameters:
    `expression` - an "*" 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.

### visitNamedInputParameter

    public boolean visitNamedInputParameter(EJBQLExpression expression)

  Specified by:
    `visitNamedInputParameter` in interface `EJBQLExpressionVisitor`

### visitNegative

    public boolean visitNegative(EJBQLExpression expression)

  Specified by:
    `visitNegative` in interface `EJBQLExpressionVisitor`

### visitNot

    public boolean visitNot(EJBQLExpression expression)

  Specified by:
    `visitNot` in interface `EJBQLExpressionVisitor`

### visitNotEquals

    public boolean visitNotEquals(EJBQLExpression expression,
                                  int finishedChildIndex)

  Description copied from interface: `EJBQLExpressionVisitor`
  Called on visiting "!=" expression and also after visiting every expression child.

  Specified by:
    `visitNotEquals` in interface `EJBQLExpressionVisitor`
  Parameters:
    `expression` - an "!=" 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.

### visitOr

    public boolean visitOr(EJBQLExpression expression,
                           int finishedChildIndex)

  Description copied from interface: `EJBQLExpressionVisitor`
  Called on visiting "or" expression and also after visiting every expression child.

  Specified by:
    `visitOr` in interface `EJBQLExpressionVisitor`
  Parameters:
    `expression` - an "or" 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.

### visitOrderBy

    public boolean visitOrderBy(EJBQLExpression expression)

  Specified by:
    `visitOrderBy` in interface `EJBQLExpressionVisitor`

### visitOrderByItem

    public boolean visitOrderByItem(EJBQLExpression expression)

  Specified by:
    `visitOrderByItem` in interface `EJBQLExpressionVisitor`

### visitOuterFetchJoin

    public boolean visitOuterFetchJoin(EJBQLJoin join)

  Specified by:
    `visitOuterFetchJoin` in interface `EJBQLExpressionVisitor`

### visitOuterJoin

    public boolean visitOuterJoin(EJBQLJoin join)

  Specified by:
    `visitOuterJoin` in interface `EJBQLExpressionVisitor`

### 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 interface `EJBQLExpressionVisitor`
  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.

### visitPatternValue

    public boolean visitPatternValue(EJBQLExpression expression)

  Specified by:
    `visitPatternValue` in interface `EJBQLExpressionVisitor`

### visitPositionalInputParameter

    public boolean visitPositionalInputParameter(EJBQLPositionalInputParameter expression)

  Specified by:
    `visitPositionalInputParameter` in interface `EJBQLExpressionVisitor`

### visitSelect

    public boolean visitSelect(EJBQLExpression expression)

  Specified by:
    `visitSelect` in interface `EJBQLExpressionVisitor`

### visitSelectClause

    public boolean visitSelectClause(EJBQLExpression expression)

  Specified by:
    `visitSelectClause` in interface `EJBQLExpressionVisitor`

### visitSelectExpression

    public boolean visitSelectExpression(EJBQLExpression expression)

  Specified by:
    `visitSelectExpression` in interface `EJBQLExpressionVisitor`

### visitSelectExpressions

    public boolean visitSelectExpressions(EJBQLExpression expression)

  Specified by:
    `visitSelectExpressions` in interface `EJBQLExpressionVisitor`

### visitSize

    public boolean visitSize(EJBQLExpression expression)

  Specified by:
    `visitSize` in interface `EJBQLExpressionVisitor`

### visitSqrt

    public boolean visitSqrt(EJBQLExpression expression,
                             int finishedChildIndex)

  Specified by:
    `visitSqrt` in interface `EJBQLExpressionVisitor`

### visitStringLiteral

    public boolean visitStringLiteral(EJBQLExpression expression)

  Specified by:
    `visitStringLiteral` in interface `EJBQLExpressionVisitor`

### visitSubselect

    public boolean visitSubselect(EJBQLExpression expression)

  Specified by:
    `visitSubselect` in interface `EJBQLExpressionVisitor`

### visitSubstring

    public boolean visitSubstring(EJBQLExpression expression,
                                  int finishedChildIndex)

  Specified by:
    `visitSubstring` in interface `EJBQLExpressionVisitor`

### visitSubtract

    public boolean visitSubtract(EJBQLExpression expression,
                                 int finishedChildIndex)

  Description copied from interface: `EJBQLExpressionVisitor`
  Called on visiting "subtract" expression and also after visiting every expression child.

  Specified by:
    `visitSubtract` in interface `EJBQLExpressionVisitor`
  Parameters:
    `expression` - an "subtract" 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.

### visitSum

    public boolean visitSum(EJBQLAggregateColumn expression)

  Specified by:
    `visitSum` in interface `EJBQLExpressionVisitor`

### visitTok

    public boolean visitTok(EJBQLExpression expression)

  Specified by:
    `visitTok` in interface `EJBQLExpressionVisitor`

### visitTrim

    public boolean visitTrim(EJBQLExpression expression,
                             int finishedChildIndex)

  Specified by:
    `visitTrim` in interface `EJBQLExpressionVisitor`

### visitTrimBoth

    public boolean visitTrimBoth(EJBQLExpression expression)

  Specified by:
    `visitTrimBoth` in interface `EJBQLExpressionVisitor`

### visitTrimCharacter

    public boolean visitTrimCharacter(EJBQLExpression expression)

  Specified by:
    `visitTrimCharacter` in interface `EJBQLExpressionVisitor`

### visitTrimLeading

    public boolean visitTrimLeading(EJBQLExpression expression)

  Specified by:
    `visitTrimLeading` in interface `EJBQLExpressionVisitor`

### visitTrimTrailing

    public boolean visitTrimTrailing(EJBQLExpression expression)

  Specified by:
    `visitTrimTrailing` in interface `EJBQLExpressionVisitor`

### visitUpdate

    public boolean visitUpdate(EJBQLExpression expression)

  Specified by:
    `visitUpdate` in interface `EJBQLExpressionVisitor`

### visitUpdateField

    public boolean visitUpdateField(EJBQLExpression expression,
                                    int finishedChildIndex)

  Specified by:
    `visitUpdateField` in interface `EJBQLExpressionVisitor`

### visitUpdateItem

    public boolean visitUpdateItem(EJBQLExpression expression,
                                   int finishedChildIndex)

  Specified by:
    `visitUpdateItem` in interface `EJBQLExpressionVisitor`

### visitUpdateValue

    public boolean visitUpdateValue(EJBQLExpression expression)

  Specified by:
    `visitUpdateValue` in interface `EJBQLExpressionVisitor`

### visitUpper

    public boolean visitUpper(EJBQLExpression expression,
                              int finishedChildIndex)

  Specified by:
    `visitUpper` in interface `EJBQLExpressionVisitor`

### visitWhere

    public boolean visitWhere(EJBQLExpression expression)

  Specified by:
    `visitWhere` in interface `EJBQLExpressionVisitor`

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