org.basex.query.path
Class Test

java.lang.Object
  org.basex.query.path.Test

Direct Known Subclasses:

KindTest, NameTest

public abstract class Test
extends Object

XQuery node tests.

Author:

Workgroup DBIS, University of Konstanz 2005-10, ISC License, Christian Gruen

Nested Class Summary

static class

Test.Kind Test types.

Field Summary

Test.Kind	kind Test type.
QNm	name Name test.
static Test	NODE Static node test.
Type	type Node test.

Constructor Summary

Test()

Method Summary

boolean	comp(QueryContext ctx) Optimizes and compiles the expression.
abstract boolean	eval(Nod nod) Tests the specified node.
boolean	sameAs(Test t) Checks the current and specified test for equality.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

NODE

public static final Test NODE

Static node test.

kind

public Test.Kind kind

Test type.

type

public Type type

Node test.

name

public QNm name

Name test.

Constructor Detail

Test

public Test()

Method Detail

comp

public boolean comp(QueryContext ctx)
             throws QueryException

Optimizes and compiles the expression.

Parameters:

ctx - query context

Returns:

false if test always returns false

Throws:

QueryException - query exception

eval

public abstract boolean eval(Nod nod)
                      throws QueryException

Tests the specified node.

Parameters:

nod - temporary node

Returns:

result of check

Throws:

QueryException - query exception

sameAs

public final boolean sameAs(Test t)

Checks the current and specified test for equality.

Parameters:

t - test to be compared

Returns:

result of check