org.datanucleus.store.rdbms.sql.expression
Class FloatingPointLiteral

java.lang.Object
  extended by org.datanucleus.store.rdbms.sql.expression.SQLExpression
      extended by org.datanucleus.store.rdbms.sql.expression.NumericExpression
          extended by org.datanucleus.store.rdbms.sql.expression.FloatingPointLiteral
All Implemented Interfaces:
SQLLiteral

public class FloatingPointLiteral
extends NumericExpression
implements SQLLiteral

Representation of a FloatPoint literal in a query.


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
isParameter, LOCALISER, lowestOperator, mapping, st, stmt, subExprs, table
 
Constructor Summary
FloatingPointLiteral(SQLStatement stmt, org.datanucleus.store.mapped.mapping.JavaTypeMapping mapping, java.lang.Object value, boolean parameter)
          Constructor for a floating point literal with a value.
 
Method Summary
 SQLExpression add(SQLExpression expr)
          Additive Operator.
 SQLExpression div(SQLExpression expr)
          Division Operator.
 BooleanExpression eq(SQLExpression expr)
          Equality operator (equals to)
 BooleanExpression ge(SQLExpression expr)
          Relational operator (greater than or equals)
 java.lang.Object getValue()
          Accessor to the literal value
 BooleanExpression gt(SQLExpression expr)
          Relational operator (greater than)
 BooleanExpression le(SQLExpression expr)
          Relational operator (lower than or equals)
 BooleanExpression lt(SQLExpression expr)
          Relational operator (lower than)
 SQLExpression mul(SQLExpression expr)
          Multiplication Operator
 BooleanExpression ne(SQLExpression expr)
          Not equality operator (not equals to)
 SQLExpression neg()
          Unary Minus Operator
 void setNotParameter()
          Method to set this literal as not being a parameter.
protected  void setStatement()
           
 SQLExpression sub(SQLExpression expr)
          Additive Operator.
 
Methods inherited from class org.datanucleus.store.rdbms.sql.expression.NumericExpression
com, in, mod
 
Methods inherited from class org.datanucleus.store.rdbms.sql.expression.SQLExpression
and, cast, checkForAndCorrectParameterComparison, encloseInParentheses, eor, getJavaTypeMapping, getNumberOfSubExpressions, getSQLStatement, getSQLTable, invoke, ior, is, isParameter, not, toSQLText
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

FloatingPointLiteral

public FloatingPointLiteral(SQLStatement stmt,
                            org.datanucleus.store.mapped.mapping.JavaTypeMapping mapping,
                            java.lang.Object value,
                            boolean parameter)
Constructor for a floating point literal with a value.

Parameters:
stmt - the SQL statement
mapping - the mapping
value - the value
parameter - Whether this literal is a parameter (JDBC "?")
Method Detail

eq

public BooleanExpression eq(SQLExpression expr)
Description copied from class: SQLExpression
Equality operator (equals to)

Overrides:
eq in class NumericExpression
Parameters:
expr - the right-hand operand
Returns:
The type of an equality expression is a boolean

ne

public BooleanExpression ne(SQLExpression expr)
Description copied from class: SQLExpression
Not equality operator (not equals to)

Overrides:
ne in class NumericExpression
Parameters:
expr - the right-hand operand
Returns:
The type of an equality expression is a boolean

lt

public BooleanExpression lt(SQLExpression expr)
Description copied from class: SQLExpression
Relational operator (lower than)

Overrides:
lt in class NumericExpression
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.

le

public BooleanExpression le(SQLExpression expr)
Description copied from class: SQLExpression
Relational operator (lower than or equals)

Overrides:
le in class NumericExpression
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.

gt

public BooleanExpression gt(SQLExpression expr)
Description copied from class: SQLExpression
Relational operator (greater than)

Overrides:
gt in class NumericExpression
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.

ge

public BooleanExpression ge(SQLExpression expr)
Description copied from class: SQLExpression
Relational operator (greater than or equals)

Overrides:
ge in class NumericExpression
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.

add

public SQLExpression add(SQLExpression expr)
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 class NumericExpression
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;

sub

public SQLExpression sub(SQLExpression expr)
Description copied from class: SQLExpression
Additive Operator. The binary - operator subtracts right-hand operand from left-hand operand.

Overrides:
sub in class NumericExpression
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.

mul

public SQLExpression mul(SQLExpression expr)
Description copied from class: SQLExpression
Multiplication Operator

Overrides:
mul in class NumericExpression
Parameters:
expr - the right-hand operator
Returns:
The binary * operator performs multiplication, producing the product of its operands.

div

public SQLExpression div(SQLExpression expr)
Description copied from class: SQLExpression
Division Operator. The left-hand operand is the dividend and the right-hand operand is the divisor.

Overrides:
div in class NumericExpression
Parameters:
expr - the right-hand operator
Returns:
The binary / operator performs division, producing the quotient of its operands

neg

public SQLExpression neg()
Description copied from class: SQLExpression
Unary Minus Operator

Overrides:
neg in class NumericExpression
Returns:
the type of the unary minus expression is the promoted type of the operand.

getValue

public java.lang.Object getValue()
Description copied from interface: SQLLiteral
Accessor to the literal value

Specified by:
getValue in interface SQLLiteral
Returns:
the value of the literal

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 interface SQLLiteral

setStatement

protected void setStatement()


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