DbList (BaseX Core 10.6 API)

java.lang.Object
- org.basex.query.expr.ExprInfo
- - org.basex.query.expr.Expr
  - - org.basex.query.expr.ParseExpr
    - - org.basex.query.expr.Arr
      - org.basex.query.func.StandardFunc
        
        org.basex.query.func.db.DbList

Direct Known Subclasses:

DbDir, DbListDetails
```
public class DbList
extends StandardFunc
```
Function implementation.

Author:

BaseX Team 2005-23, BSD License, Christian Gruen

Field Summary
- Fields inherited from class org.basex.query.func.StandardFunc
  definition, sc
- Fields inherited from class org.basex.query.expr.Arr
  exprs
- Fields inherited from class org.basex.query.expr.ParseExpr
  exprType, info

Constructor Summary

Constructors
Constructor Description

DbList()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`accept(ASTVisitor visitor)`	Traverses this expression, notifying the visitor of declared and used variables, and checking the tree for other recursive properties.
`Iter`	`iter(QueryContext qc)`	Evaluates the expression and returns an iterator on the resulting items.
`Value`	`value(QueryContext qc)`	Evaluates the expression and returns the resulting value.

Methods inherited from class org.basex.query.func.StandardFunc
checkPerm, coerceFunc, compileData, copy, dataLock, defined, description, embed, equals, has, opt, optFirst, optFirst, optimize, serialize, simplifyArgs, toBaseUri, toBindings, toCollation, toCollationOrDefault, toContent, toContent, toData, toDate, toDBNode, toEncodingOrNull, toFunction, toFunction, toIO, toIO, toMs, toName, toNodeOrAtomItem, toOptions, toOptions, toPath, toPath, toStr, toString, toXml, toZeroStr, updating, vacuous

Methods inherited from class org.basex.query.expr.Arr
allAreValues, arg, args, checkUp, compile, copyAll, count, exprSize, flatten, inline, inlineable, mayBePositional, removeEmpty, simplifyAll

Methods inherited from class org.basex.query.expr.ParseExpr
adoptType, atomValue, checkAllUp, checkNoEmpty, checkNoEmpty, checkNoneUp, checkNoUp, checkType, checkType, checkUp, copyType, ctxValue, data, ebv, info, item, refineType, seqType, size, test, toArray, toArray, toAtomItem, toB64, toB64, toB64OrNull, toBin, toBin, toBoolean, toBoolean, toBooleanOrFalse, toBytes, toBytes, toDouble, toDouble, toElem, toElem, toFloat, toFunction, toItem, toItem, toLong, toLong, toMap, toMap, toNode, toNode, toNodeOrNull, toNumber, toNumberOrNull, toQNm, toQNmOrNull, toString, toString, toStringOrNull, toToken, toToken, toTokenOrNull, toZeroToken

Methods inherited from class org.basex.query.expr.Expr
arg, atomItem, atomIter, ddo, funcType, hasFreeVars, indexAccessible, isSimple, markTailCalls, mergeEbv, optimizePos, simplify, simplifyFor, typeCheck, uses, visitAll

Methods inherited from class org.basex.query.expr.ExprInfo
toErrorString, toString

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

- Constructor Detail
  - DbList
```
public DbList()
```
- Method Detail
  - iter
```
public Iter iter(QueryContext qc)
          throws QueryException
```
    Description copied from class: Expr
    
    Evaluates the expression and returns an iterator on the resulting items. The implementation of this method is optional.
    
    Overrides:
    
    iter in class ParseExpr
    
    Parameters:
    
    qc - query context
    
    Returns:
    
    iterator
    
    Throws:
    
    QueryException - query exception
  - value
```
public Value value(QueryContext qc)
            throws QueryException
```
    Description copied from class: Expr
    
    Evaluates the expression and returns the resulting value. If this method is not implemented, Expr.item(QueryContext, InputInfo) must be implemented instead.
    
    Overrides:
    
    value in class ParseExpr
    
    Parameters:
    
    qc - query context
    
    Returns:
    
    value
    
    Throws:
    
    QueryException - query exception
  - accept
```
public final boolean accept(ASTVisitor visitor)
```
    Description copied from class: Expr
    
    Traverses this expression, notifying the visitor of declared and used variables, and checking the tree for other recursive properties.
    
    Overrides:
    
    accept in class Arr
    
    Parameters:
    
    visitor - visitor
    
    Returns:
    
    if the walk should be continued