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## org.basex.query.xquery.expr
Class Arr

    java.lang.Object
      org.basex.query.xquery.expr.Expr
          org.basex.query.xquery.expr.Arr

Direct Known Subclasses:
  And, CAttr, CElem, Except, FTAnd, FTMildNot, FTOr, FunCall, InterSect, List, Or, Path, Pred, Step, TypeSwitch, Union

    public abstract class Arr

extends Expr

Abstract array expression.

Author:
  Workgroup DBIS, University of Konstanz 2005-07, ISC License, Christian Gruen

Field Summary
`Expr[]` | `list` Expression list.

Fields inherited from class org.basex.query.xquery.expr.Expr
`type`

Method Summary
`Expr` | `comp(XQContext ctx)` Optimizes and compiles the expression tree.

Methods inherited from class org.basex.query.xquery.expr.Expr
`cls, d, e, eval, i, info, n, node, s, size, str, toString, u`

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

Field Detail

### list

    public Expr[] list

  Expression list.

Method Detail

### comp

    public Expr comp(XQContext ctx)
              throws XQException

  Description copied from class: `Expr`
  Optimizes and compiles the expression tree.

  Specified by:
    `comp` in class `Expr`
  Parameters:
    `ctx` - query context
  Returns:
    optimized Expression
  Throws:
    `XQException` - evaluation exception

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