org.datanucleus.store.rdbms.sql.expression

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

SQLExpression.ColumnExpressionList

Field Summary

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

wrappedExpressions

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

Method Summary

Modifier and Type	Method and Description
SQLExpression	invoke(String methodName, List args) Allow the methods to be invoked directly in the wrapped type.

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

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

Methods inherited from class java.lang.Object

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

Constructor Detail

OptionalExpression

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

Method Detail

invoke

public SQLExpression invoke(String methodName,
                            List args)

Description copied from class: SingleCollectionExpression

Allow the methods to be invoked directly in the wrapped type.

Overrides:

invoke in class SingleCollectionExpression

Parameters:

methodName - name of the method to invoke

args - Args to this method (if any)

Returns:

the converted value