ParameterExpression (DataNucleus Core 6.0.1-SNAPSHOT API)

java.lang.Object
- org.datanucleus.store.query.expression.Expression
- - org.datanucleus.store.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.store.query.expression.Expression
  Expression.DyadicOperator, Expression.MonadicOperator, Expression.Operator

Field Summary
- 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(String name, int position)`
`ParameterExpression(String name, Class type)`	Constructor for when we know the name and the type (e.g via criteria queries).

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	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)`
`void`	`setType(Class type)`
`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

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()
```
- setType
```
public void setType(Class type)
```
- 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