Class StringSubqueryExpression
java.lang.Object
org.datanucleus.store.rdbms.sql.expression.SQLExpression
org.datanucleus.store.rdbms.sql.expression.StringExpression
org.datanucleus.store.rdbms.sql.expression.StringSubqueryExpression
- All Implemented Interfaces:
SubqueryExpressionComponent
public class StringSubqueryExpression
extends StringExpression
implements SubqueryExpressionComponent
String expression to wrap a subquery.
The subquery SQLStatement should return a String value.
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Nested Class Summary
Nested classes/interfaces inherited from class org.datanucleus.store.rdbms.sql.expression.SQLExpression
SQLExpression.ColumnExpressionList
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Field Summary
FieldsFields inherited from class org.datanucleus.store.rdbms.sql.expression.SQLExpression
lowestOperator, mapping, parameterName, st, stmt, subExprs, table
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptioneq
(SQLExpression expr) Equality operator (equals to)ge
(SQLExpression expr) Relational operator (greater than or equals)Accessor for the subquery.gt
(SQLExpression expr) Relational operator (greater than)invoke
(String methodName, List<SQLExpression> args) Invocation of a method on this expression.le
(SQLExpression expr) Relational operator (lower than or equals)lt
(SQLExpression expr) Relational operator (lower than)ne
(SQLExpression expr) Not equality operator (not equals to)void
setKeyword
(String keyword) Methods inherited from class org.datanucleus.store.rdbms.sql.expression.StringExpression
add, in
Methods inherited from class org.datanucleus.store.rdbms.sql.expression.SQLExpression
and, bitAnd, bitOr, cast, com, distinct, div, encloseInParentheses, eor, getJavaTypeMapping, getLowestOperator, getNumberOfSubExpressions, getParameterName, getSQLStatement, getSQLTable, getSubExpression, ior, is, isParameter, mod, mul, neg, not, setJavaTypeMapping, sub, toSQLText, unDistinct
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Field Details
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subStatement
SQLStatement subStatement
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Constructor Details
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StringSubqueryExpression
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Method Details
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getSubqueryStatement
Description copied from interface:SubqueryExpressionComponent
Accessor for the subquery.- Specified by:
getSubqueryStatement
in interfaceSubqueryExpressionComponent
- Returns:
- The subquery statement
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setKeyword
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eq
Description copied from class:SQLExpression
Equality operator (equals to)- Overrides:
eq
in classStringExpression
- Parameters:
expr
- the right-hand operand- Returns:
- The type of an equality expression is a boolean
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ne
Description copied from class:SQLExpression
Not equality operator (not equals to)- Overrides:
ne
in classStringExpression
- Parameters:
expr
- the right-hand operand- Returns:
- The type of an equality expression is a boolean
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lt
Description copied from class:SQLExpression
Relational operator (lower than)- Overrides:
lt
in classStringExpression
- Parameters:
expr
- the right-hand operand- Returns:
- true if the value of the left-hand operand is less than the value of the right-hand operand, and otherwise is false.
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le
Description copied from class:SQLExpression
Relational operator (lower than or equals)- Overrides:
le
in classStringExpression
- Parameters:
expr
- the right-hand operand- Returns:
- true if the value of the left-hand operand is less than or equal to the value of the right-hand operand, and otherwise is false.
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gt
Description copied from class:SQLExpression
Relational operator (greater than)- Overrides:
gt
in classStringExpression
- Parameters:
expr
- the right-hand operand- Returns:
- true if the value of the left-hand operand is greater than the value of the right-hand operand, and otherwise is false.
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ge
Description copied from class:SQLExpression
Relational operator (greater than or equals)- Overrides:
ge
in classStringExpression
- Parameters:
expr
- the right-hand operand- Returns:
- true if the value of the left-hand operand is greater than or equal the value of the right-hand operand, and otherwise is false.
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invoke
Description copied from class:SQLExpression
Invocation of a method on this expression.- Overrides:
invoke
in classStringExpression
- Parameters:
methodName
- name of the method to invokeargs
- Args to this method (if any)- Returns:
- the converted value
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