org.datanucleus.query.expression

Class ParameterExpression

java.lang.Object

org.datanucleus.query.expression.Expression

org.datanucleus.query.expression.ParameterExpression

All Implemented Interfaces:

Serializable

public class ParameterExpression
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.query.expression.Expression

Expression.DyadicOperator, Expression.MonadicOperator, Expression.Operator

Field Summary

Fields inherited from class org.datanucleus.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 and Description
ParameterExpression(String name, Class type) Constructor for when we know the name and the type (e.g via criteria queries).
ParameterExpression(String name, int position)

Method Summary

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

Methods inherited from class org.datanucleus.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

Constructor Detail

ParameterExpression

public ParameterExpression(String name,
                           int position)

ParameterExpression

public ParameterExpression(String name,
                           Class 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 String getId()

getPosition

public int getPosition()

getType

public Class getType()

setName

public void setName(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 String toString()

Overrides:

toString in class Object