CmpPos (BaseX Core 10.3 API)

All Known Implementing Classes:

IntPos
```
public interface CmpPos
```
Position checks.

Author:

BaseX Team 2005-22, BSD License, Christian Gruen

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`exact()`	Checks if the minimum and maximum positions are identical.
`Expr`	`invert(CompileContext cc)`	If possible, returns an optimized expression with inverted operands.
`int`	`test(long pos, QueryContext qc)`	Checks the current position.

- Method Detail
  - test
```
int test(long pos,
         QueryContext qc)
  throws QueryException
```
    Checks the current position.
    
    Returns 2 if the test is successful and remaining tests can be skipped
    Returns 1 if the test is successful
    Returns 0 otherwise
    Parameters:
    
    pos - current position
    
    qc - query context
    
    Returns:
    
    result of check
    
    Throws:
    
    QueryException - query exception
  - exact
```
boolean exact()
```
    Checks if the minimum and maximum positions are identical.
    
    Returns:
    
    result of check
  - invert
```
Expr invert(CompileContext cc)
     throws QueryException
```
    If possible, returns an optimized expression with inverted operands.
    
    Parameters:
    
    cc - compilation context
    
    Returns:
    
    inverted expression or null
    
    Throws:
    
    QueryException - query exception