com.wewebu.ow.csqlc.ast

Class OwNullPredicate

java.lang.Object

com.wewebu.ow.csqlc.ast.OwBooleanTerm

com.wewebu.ow.csqlc.ast.OwBooleanFactor

com.wewebu.ow.csqlc.ast.OwBooleanTest

com.wewebu.ow.csqlc.ast.OwPredicate

com.wewebu.ow.csqlc.ast.OwNullPredicate

All Implemented Interfaces:

OwSearchCondition

public class OwNullPredicate
extends OwPredicate

SQL AST node : <null predicatet> syntax non-terminal as defined by the SQL grammar.

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All rights reserved.

For licensing information read the license.txt file or
go to: http://wiki.alfresco.com

Since:

3.2.0.0

Field Summary

Fields

Modifier and Type	Field and Description
static String	IS_NOT_NULL
static String	IS_NULL

Constructor Summary

Constructors

Constructor and Description
OwNullPredicate(OwColumnReference columnReference_p, boolean negated_p) Constructor

Method Summary

Methods

Modifier and Type	Method and Description
StringBuilder	createPredicateSQLString()
List<OwColumnQualifier>	getColumnQualifiers()
boolean	isValid()

Methods inherited from class com.wewebu.ow.csqlc.ast.OwPredicate

createBooleanTestSQLString, isXCondition

Methods inherited from class com.wewebu.ow.csqlc.ast.OwBooleanTest

asBooleanTest, createBooleanFactorSQLString

Methods inherited from class com.wewebu.ow.csqlc.ast.OwBooleanFactor

createBooleanTermSQLString

Methods inherited from class com.wewebu.ow.csqlc.ast.OwBooleanTerm

createSearchConditionSQLString

Methods inherited from class java.lang.Object

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

Field Detail

IS_NULL

public static final String IS_NULL

See Also:

Constant Field Values

IS_NOT_NULL

public static final String IS_NOT_NULL

See Also:

Constant Field Values

Constructor Detail

OwNullPredicate

public OwNullPredicate(OwColumnReference columnReference_p,
               boolean negated_p)

Constructor

Parameters:

columnReference_p - the column reference operand, must not be null

Method Detail

createPredicateSQLString

public StringBuilder createPredicateSQLString()

Specified by:

createPredicateSQLString in class OwPredicate

Returns:

a StringBuilder filled with the string representation of this non-terminal

isValid

public boolean isValid()

Returns:

always true

getColumnQualifiers

public List<OwColumnQualifier> getColumnQualifiers()