org.datanucleus.store.rdbms.sql.expression

Class BooleanSubqueryExpression

java.lang.Object

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

org.datanucleus.store.rdbms.sql.expression.BooleanExpression

org.datanucleus.store.rdbms.sql.expression.BooleanSubqueryExpression

public class BooleanSubqueryExpression
extends BooleanExpression

Boolean expression to wrap a subquery. The subquery will be a "SELECT 1 FROM ..." resulting in SQL like

{keyword} (SELECT 1 FROM ...)

where the keyword is supplied (e.g EXISTS). e.g

EXISTS (SELECT 1 FROM TBL WHERE TBL.ID = A0.ID)

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.SQLExpression

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

Constructor Summary

Constructors

Constructor and Description
BooleanSubqueryExpression(SQLStatement stmt, String keyword, SQLStatement subStmt)

Method Summary

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

and, eor, eq, hasClosure, in, invoke, ior, ne, neg, not

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

add, cast, com, distinct, div, encloseInParentheses, ge, getJavaTypeMapping, getLowestOperator, getNumberOfSubExpressions, getParameterName, getSQLStatement, getSQLTable, getSubExpression, gt, is, isParameter, le, lt, mod, mul, setJavaTypeMapping, sub, toSQLText

Methods inherited from class java.lang.Object

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

Constructor Detail

BooleanSubqueryExpression

public BooleanSubqueryExpression(SQLStatement stmt,
                         String keyword,
                         SQLStatement subStmt)