com.triactive.jdo.store.sql.expr
Class NullLiteral

java.lang.Object
  com.triactive.jdo.store.sql.expr.AbstractSqlExpression
      com.triactive.jdo.store.sql.expr.NullLiteral

All Implemented Interfaces:

SqlExpression, StatementTextGenerator

public class NullLiteral
extends AbstractSqlExpression

Nested Class Summary

Nested classes/interfaces inherited from class com.triactive.jdo.store.sql.expr.AbstractSqlExpression

AbstractSqlExpression.Body, AbstractSqlExpression.CompoundExpression, AbstractSqlExpression.SimpleColumnReference, AbstractSqlExpression.SubqueryExpression

Field Summary

Fields inherited from class com.triactive.jdo.store.sql.expr.AbstractSqlExpression

body, qs

Constructor Summary

NullLiteral(QueryStatement qs)

Method Summary

BooleanExpression	eq(SqlExpression expr) Returns a new expression representing "this == expr".
BooleanExpression	noteq(SqlExpression expr) Returns a new expression representing "this != expr".
StatementText	toStatementText() Returns the SQL statement text which this object generates.

Methods inherited from class com.triactive.jdo.store.sql.expr.AbstractSqlExpression

accessField, add, and, callMethod, cast, com, div, eor, getColumnMapping, getJavaType, getMapping, getQueryStatement, getReferencedColumns, gt, gteq, innermostQuery, innermostQuery, ior, lt, lteq, mod, mul, neg, newBody, newBody, newBody, newBody, newBody, newBody, newResultExpression, newSubqueryBody, not, select, setMapping, sub, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

NullLiteral

public NullLiteral(QueryStatement qs)

Method Detail

eq

public BooleanExpression eq(SqlExpression expr)

Description copied from interface: SqlExpression

Returns a new expression representing "this == expr".

Specified by:

eq in interface SqlExpression

Overrides:

eq in class AbstractSqlExpression

Parameters:

expr - The right-hand side of the operator.

noteq

public BooleanExpression noteq(SqlExpression expr)

Description copied from interface: SqlExpression

Returns a new expression representing "this != expr".

Specified by:

noteq in interface SqlExpression

Overrides:

noteq in class AbstractSqlExpression

Parameters:

expr - The right-hand side of the operator.

toStatementText

public StatementText toStatementText()

Description copied from interface: StatementTextGenerator

Returns the SQL statement text which this object generates.

Specified by:

toStatementText in interface StatementTextGenerator

Overrides:

toStatementText in class AbstractSqlExpression