Class CharacterLiteral
java.lang.Object
org.datanucleus.store.rdbms.sql.expression.SQLExpression
org.datanucleus.store.rdbms.sql.expression.CharacterExpression
org.datanucleus.store.rdbms.sql.expression.CharacterLiteral
- All Implemented Interfaces:
SQLLiteral
Representation of a Character literal in a Query.
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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
ConstructorsConstructorDescriptionCharacterLiteral
(SQLStatement stmt, JavaTypeMapping mapping, Object value, String parameterName) Constructor for a character literal with a value. -
Method Summary
Modifier and TypeMethodDescriptionadd
(SQLExpression expr) Additive Operator.com()
Bitwise Complement Operatoreq
(SQLExpression expr) Equality operator (equals to)ge
(SQLExpression expr) Relational operator (greater than or equals)getValue()
Accessor to the literal valuegt
(SQLExpression expr) Relational operator (greater than)le
(SQLExpression expr) Relational operator (lower than or equals)lt
(SQLExpression expr) Relational operator (lower than)mod
(SQLExpression expr) Method to return a modulus expression.ne
(SQLExpression expr) Not equality operator (not equals to)neg()
Unary Minus Operatorvoid
void
Method to set this literal as not being a parameter.protected void
sub
(SQLExpression expr) Additive Operator.Methods inherited from class org.datanucleus.store.rdbms.sql.expression.CharacterExpression
div, in, invoke, mul
Methods inherited from class org.datanucleus.store.rdbms.sql.expression.SQLExpression
and, bitAnd, bitOr, cast, distinct, encloseInParentheses, eor, getJavaTypeMapping, getLowestOperator, getNumberOfSubExpressions, getParameterName, getSQLStatement, getSQLTable, getSubExpression, ior, is, isParameter, not, toSQLText, unDistinct
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Field Details
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value
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Constructor Details
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CharacterLiteral
public CharacterLiteral(SQLStatement stmt, JavaTypeMapping mapping, Object value, String parameterName) Constructor for a character literal with a value.- Parameters:
stmt
- the SQL statementmapping
- the mappingvalue
- the valueparameterName
- Name of the parameter represented if any (JDBC "?")
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Method Details
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eq
Description copied from class:SQLExpression
Equality operator (equals to)- Overrides:
eq
in classCharacterExpression
- 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 classCharacterExpression
- 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 classCharacterExpression
- 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 classCharacterExpression
- 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 classCharacterExpression
- 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 classCharacterExpression
- 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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add
Description copied from class:SQLExpression
Additive Operator. The binary + operator performs addition when applied to two operands of numeric type, producing the sum of the operands. If the type of either operand of a + operator is String, then the operation is string concatenation.- Overrides:
add
in classCharacterExpression
- Parameters:
expr
- the right-hand operand- Returns:
- If one of the operands is String, the returned value is the string concatenation; The sum of two operands of numeric type. The left-hand operand is the minuend and the right-hand operand is the subtrahend;
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sub
Description copied from class:SQLExpression
Additive Operator. The binary - operator subtracts right-hand operand from left-hand operand.- Overrides:
sub
in classCharacterExpression
- Parameters:
expr
- the right-hand operand- Returns:
- The binary - operator performs subtraction when applied to two operands of numeric type producing the difference of its operands; the left-hand operand is the minuend and the right-hand operand is the subtrahend.
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mod
Description copied from class:CharacterExpression
Method to return a modulus expression.- Overrides:
mod
in classCharacterExpression
- Parameters:
expr
- The expression to modulus against- Returns:
- The modulus expression
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neg
Description copied from class:SQLExpression
Unary Minus Operator- Overrides:
neg
in classCharacterExpression
- Returns:
- the type of the unary minus expression is the promoted type of the operand.
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com
Description copied from class:SQLExpression
Bitwise Complement Operator- Overrides:
com
in classCharacterExpression
- Returns:
- the type of the unary bitwise complement expression is the promoted type of the operand.
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getValue
Description copied from interface:SQLLiteral
Accessor to the literal value- Specified by:
getValue
in interfaceSQLLiteral
- Returns:
- the value of the literal
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setJavaTypeMapping
- Overrides:
setJavaTypeMapping
in classSQLExpression
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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 interfaceSQLLiteral
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setStatement
protected void setStatement()
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