Package org.datanucleus.store.rdbms.sql.expression

Class EnumLiteral

java.lang.Object

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

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

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

org.datanucleus.store.rdbms.sql.expression.EnumLiteral

All Implemented Interfaces:

SQLLiteral

public class EnumLiteral
extends EnumExpression
implements SQLLiteral

Representation of an Enum literal.

Nested Class Summary

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

SQLExpression.ColumnExpressionList

Field Summary

Fields

Modifier and Type	Field	Description
private final Enum	value

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

delegate

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

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

Constructor Summary

Constructors

Constructor	Description
EnumLiteral(SQLStatement stmt, JavaTypeMapping mapping, Object value, String parameterName)	Constructor for an Enum literal with a value.

Method Summary

Modifier and Type	Method	Description
private Object	getStoredValueForEnum(JavaTypeMapping mapping)
Object	getValue()	Accessor to the literal value
boolean	isParameter()
void	setJavaTypeMapping(JavaTypeMapping mapping)
void	setNotParameter()	Method to set this literal as not being a parameter.

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

Methods inherited from class java.lang.Object

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

Field Details

value

private final Enum value

Constructor Details

EnumLiteral

public EnumLiteral(SQLStatement stmt,
 JavaTypeMapping mapping,
 Object value,
 String parameterName)

Constructor for an Enum literal with a value.

Parameters:

stmt - the SQL statement

mapping - the mapping

value - the value

parameterName - Name of the parameter that this represents if any (as JDBC "?")

Method Details

setJavaTypeMapping

public void setJavaTypeMapping(JavaTypeMapping mapping)

Overrides:

setJavaTypeMapping in class EnumExpression

getValue

public Object getValue()

Description copied from interface: SQLLiteral

Accessor to the literal value

Specified by:

getValue in interface SQLLiteral

Returns:

the value of the literal

isParameter

public boolean isParameter()

Overrides:

isParameter in class DelegatedExpression

setNotParameter

public void setNotParameter()

Description copied from interface: SQLLiteral

Method to set this literal as not being a parameter. If the literal if not currently a parameter then does nothing. Updates any underlying SQL to have the value.

Specified by:

setNotParameter in interface SQLLiteral

getStoredValueForEnum

private Object getStoredValueForEnum(JavaTypeMapping mapping)