Package org.datanucleus.store.query.expression

Class ParameterExpression<T>

java.lang.Object

org.datanucleus.store.query.expression.Expression

org.datanucleus.store.query.expression.ParameterExpression<T>

All Implemented Interfaces:

java.io.Serializable

public class ParameterExpression<T>
extends Expression

Expression representing a parameter. The parameter can be explicit (declared as input to the query) or implicit (implied based on the syntax in the query).

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.datanucleus.store.query.expression.Expression

Expression.DyadicOperator, Expression.MonadicOperator, Expression.Operator

Field Summary

Fields

Modifier and Type	Field	Description
private java.lang.String	name
private int	position
private static long	serialVersionUID
private java.lang.Class<T>	type

Fields inherited from class org.datanucleus.store.query.expression.Expression

alias, left, op, OP_ADD, OP_AND, OP_BIT_AND, OP_BIT_OR, OP_BIT_XOR, OP_CAST, OP_COM, OP_CONCAT, OP_DISTINCT, OP_DIV, OP_EQ, OP_GT, OP_GTEQ, OP_IN, OP_IS, OP_ISNOT, OP_LIKE, OP_LT, OP_LTEQ, OP_MOD, OP_MUL, OP_NEG, OP_NOT, OP_NOTEQ, OP_NOTIN, OP_OR, OP_SUB, parent, right, symbol

Constructor Summary

Constructors

Constructor	Description
ParameterExpression(java.lang.String name, int position)
ParameterExpression(java.lang.String name, java.lang.Class<T> type)	Constructor for when we know the name and the type (e.g via criteria queries).

Method Summary

Modifier and Type	Method	Description
Symbol	bind(SymbolTable symtbl)	Method to bind the expression to the symbol table as appropriate.
java.lang.String	getId()
int	getPosition()
java.lang.Class<T>	getType()
void	setName(java.lang.String name)
void	setType(java.lang.Class<T> type)
java.lang.String	toString()

Methods inherited from class org.datanucleus.store.query.expression.Expression

evaluate, getAlias, getLeft, getOperator, getParent, getRight, getSymbol, setAlias, setLeft, setRight

Methods inherited from class java.lang.Object

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

Field Detail

serialVersionUID

private static final long serialVersionUID

See Also:

Constant Field Values

name

private java.lang.String name

position

private int position

type

private java.lang.Class<T> type

Constructor Detail

ParameterExpression

public ParameterExpression(java.lang.String name,
                           int position)

ParameterExpression

public ParameterExpression(java.lang.String name,
                           java.lang.Class<T> type)

Constructor for when we know the name and the type (e.g via criteria queries).

Parameters:

name - The name

type - The type

Method Detail

getId

public java.lang.String getId()

getPosition

public int getPosition()

setType

public void setType(java.lang.Class<T> type)

getType

public java.lang.Class<T> getType()

setName

public void setName(java.lang.String name)

bind

public Symbol bind(SymbolTable symtbl)

Method to bind the expression to the symbol table as appropriate.

Specified by:

bind in class Expression

Parameters:

symtbl - Symbol Table

Returns:

The symbol for this expression

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object