org.datanucleus.store.rdbms.sql.expression

Class IntegerLiteral

java.lang.Object

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

org.datanucleus.store.rdbms.sql.expression.NumericExpression

org.datanucleus.store.rdbms.sql.expression.IntegerLiteral

All Implemented Interfaces:

SQLLiteral

public class IntegerLiteral
extends NumericExpression
implements SQLLiteral

Representation of an Integer literal.

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

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

Constructor Summary

Constructors

Constructor and Description
IntegerLiteral(SQLStatement stmt, JavaTypeMapping mapping, Object value, String parameterName) Constructor for an integer literal with a value.

Method Summary

Modifier and Type	Method and Description
SQLExpression	add(SQLExpression expr) If both operands are instances of IntegerLiteral, the operation results in BigInteger type.
SQLExpression	div(SQLExpression expr) If both operands are instances of IntegerLiteral, the operation results in BigInteger type.
BooleanExpression	eq(SQLExpression expr) Equality operator (equals to)
BooleanExpression	ge(SQLExpression expr) Relational operator (greater than or equals)
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	mod(SQLExpression expr) If both operands are instances of IntegerLiteral, the operation results in BigInteger type.
SQLExpression	mul(SQLExpression expr) If both operands are instances of IntegerLiteral, the operation results in BigInteger type.
BooleanExpression	ne(SQLExpression expr) Not equality operator (not equals to)
SQLExpression	neg() Negate operation.
void	setNotParameter() Method to set this literal as not being a parameter.
protected void	setStatement()
SQLExpression	sub(SQLExpression expr) If both operands are instances of IntegerLiteral, the operation results in BigInteger type.

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

com, in

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

and, cast, distinct, encloseInParentheses, eor, getJavaTypeMapping, getLowestOperator, getNumberOfSubExpressions, getParameterName, getSQLStatement, getSQLTable, getSubExpression, invoke, ior, is, isParameter, not, setJavaTypeMapping, toSQLText

Methods inherited from class java.lang.Object

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

Constructor Detail

IntegerLiteral

public IntegerLiteral(SQLStatement stmt,
                      JavaTypeMapping mapping,
                      Object value,
                      String parameterName)

Constructor for an integer literal with a value.

Parameters:

stmt - the SQL statement

mapping - the mapping

value - the value

parameterName - Name of the parameter that this represents if any (as 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)

If both operands are instances of IntegerLiteral, the operation results in BigInteger type.

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)

If both operands are instances of IntegerLiteral, the operation results in BigInteger type.

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)

If both operands are instances of IntegerLiteral, the operation results in BigInteger type.

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)

If both operands are instances of IntegerLiteral, the operation results in BigInteger type.

Overrides:

div in class NumericExpression

Parameters:

expr - the right-hand operator

Returns:

The binary / operator performs division, producing the quotient of its operands

mod

public SQLExpression mod(SQLExpression expr)

If both operands are instances of IntegerLiteral, the operation results in BigInteger type.

Overrides:

mod in class NumericExpression

Parameters:

expr - The expression to modulus against

Returns:

The modulus expression

neg

public SQLExpression neg()

Negate operation. Results in BigInteger type.

Overrides:

neg in class NumericExpression

Returns:

the type of the unary minus expression is the promoted type of the operand.

getValue

public 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()