org.datanucleus.store.rdbms.sql.expression

Class EnumExpression

java.lang.Object

org.datanucleus.store.rdbms.sql.expression.SQLExpression

org.datanucleus.store.rdbms.sql.expression.DelegatedExpression

org.datanucleus.store.rdbms.sql.expression.EnumExpression

Direct Known Subclasses:

EnumLiteral

public class EnumExpression
extends DelegatedExpression

Expression representing an enum field/property. An enum can be represented as a String or as a numeric hence requires its own expression. Implemented as an internal delegate of the correct root expression type.

Nested Class Summary

Nested classes/interfaces inherited from class org.datanucleus.store.rdbms.sql.expression.SQLExpression

SQLExpression.ColumnExpressionList

Field Summary

Fields inherited from class org.datanucleus.store.rdbms.sql.expression.DelegatedExpression

delegate

Fields inherited from class org.datanucleus.store.rdbms.sql.expression.SQLExpression

LOCALISER, lowestOperator, mapping, parameterName, st, stmt, subExprs, table

Constructor Summary

Constructors

Constructor and Description
EnumExpression(SQLStatement stmt, SQLTable table, JavaTypeMapping mapping) Constructor for an expression for an enum field/property.

Method Summary

Methods

Modifier and Type	Method and Description
void	setJavaTypeMapping(JavaTypeMapping mapping)

Methods inherited from class org.datanucleus.store.rdbms.sql.expression.DelegatedExpression

add, div, eq, ge, getDelegate, gt, invoke, le, lt, mod, mul, ne, sub, toSQLText

Methods inherited from class org.datanucleus.store.rdbms.sql.expression.SQLExpression

and, cast, com, distinct, encloseInParentheses, eor, getJavaTypeMapping, getLowestOperator, getNumberOfSubExpressions, getParameterName, getSQLStatement, getSQLTable, getSubExpression, in, ior, is, isParameter, neg, not

Methods inherited from class java.lang.Object

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

Constructor Detail

EnumExpression

public EnumExpression(SQLStatement stmt,
              SQLTable table,
              JavaTypeMapping mapping)

Constructor for an expression for an enum field/property.

Parameters:

stmt - The SQL statement

table - Table containing the enum

mapping - Mapping for the enum

Method Detail

setJavaTypeMapping

public void setJavaTypeMapping(JavaTypeMapping mapping)

Overrides:

setJavaTypeMapping in class SQLExpression