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 SQLExpression

SQLExpression.ColumnExpressionList

Field Summary

Fields inherited from class DelegatedExpression

delegate

Fields inherited from class SQLExpression

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

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method	Description
void	setJavaTypeMapping(JavaTypeMapping mapping)

Methods inherited from class DelegatedExpression

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

Methods inherited from class SQLExpression

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

Methods inherited from class Object

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

Constructor Details

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 Details

setJavaTypeMapping

public void setJavaTypeMapping(JavaTypeMapping mapping)

Overrides:

setJavaTypeMapping in class SQLExpression