ExprInfo (BaseX Core 10.3 API)

java.lang.Object
- org.basex.query.expr.ExprInfo

Direct Known Subclasses:

Expr, FTOpt, Pragma, StaticFuncs, StaticScope, Test, Var, Variables
```
public abstract class ExprInfo
extends Object
```
Expression information, used for debugging and logging.

Author:

BaseX Team 2005-22, BSD License, Christian Gruen

Constructor Summary

Constructors
Constructor Description

ExprInfo()

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`String`	`description()`	Returns a string description of the expression.
`InputInfo`	`info()`	Returns the input info of an expression.
`String`	`toErrorString()`	Returns a string representation of the expression that can be embedded in error messages.
`String`	`toString()`
`abstract void`	`toString(QueryString qs)`	Creates a query string.
`abstract void`	`toXml(QueryPlan plan)`	Creates a query plan.

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

- Constructor Detail
  - ExprInfo
```
public ExprInfo()
```
- Method Detail
  - description
```
public String description()
```
    Returns a string description of the expression. This method is only called by error messages. Contrary to the toString() method, arguments are not included in the output.
    
    Returns:
    
    result of check
  - info
```
public InputInfo info()
```
    Returns the input info of an expression.
    
    Returns:
    
    info or null
  - toXml
```
public abstract void toXml(QueryPlan plan)
```
    Creates a query plan.
    
    Parameters:
    
    plan - expression plan
  - toString
```
public abstract void toString(QueryString qs)
```
    Creates a query string.
    
    Parameters:
    
    qs - query string builder
  - toErrorString
```
public String toErrorString()
```
    Returns a string representation of the expression that can be embedded in error messages. Defaults to toString().
    
    Returns:
    
    class name
  - toString
```
public final String toString()
```
    Overrides:
    
    toString in class Object