Class OptionalExpression

java.lang.Object

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

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

org.datanucleus.store.rdbms.sql.expression.SingleCollectionExpression

org.datanucleus.store.rdbms.sql.expression.OptionalExpression

Direct Known Subclasses:

OptionalLiteral

public class OptionalExpression
extends SingleCollectionExpression

Expression for java.util.Optional.

Nested Class Summary

Nested classes/interfaces inherited from class SQLExpression

SQLExpression.ColumnExpressionList

Field Summary

Fields inherited from class SingleCollectionExpression

wrappedExpressions

Fields inherited from class DelegatedExpression

delegate

Fields inherited from class SQLExpression

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

Constructor Summary

Constructors

Constructor	Description
OptionalExpression(SQLStatement stmt, SQLTable table, JavaTypeMapping mapping)

Method Summary

Modifier and Type	Method	Description
SQLExpression	invoke(String methodName, List<SQLExpression> args)	Invocation of a method on this expression.

Methods inherited from class DelegatedExpression

add, div, eq, ge, getDelegate, gt, 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, setJavaTypeMapping, unDistinct

Methods inherited from class Object

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

Constructor Details

OptionalExpression

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

Method Details

invoke

public SQLExpression invoke(String methodName,
 List<SQLExpression> args)

Description copied from class: SQLExpression

Invocation of a method on this expression.

Overrides:

invoke in class SingleCollectionExpression

Parameters:

methodName - name of the method to invoke

args - Args to this method (if any)

Returns:

the converted value