StatementParameterMapping

java.lang.Object
- org.datanucleus.store.rdbms.query.StatementParameterMapping

```
public class StatementParameterMapping
extends java.lang.Object
```
Definition of the mapping of parameters in a datastore statement. A typical use is for RDBMS where we have a JDBC statement and each parameter is looked up via its name. The mapping information for the parameter provides the mapping and the parameter positions to use.

Field Summary

Fields
Modifier and Type Field Description

(package private) java.util.Map<java.lang.String,StatementMappingIndex> mappings
Mappings for the parameters keyed by the parameter name.

Constructor Summary

Constructors
Constructor Description

StatementParameterMapping()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`addMappingForParameter(java.lang.String name, StatementMappingIndex mapping)`
`StatementMappingIndex`	`getMappingForParameter(java.lang.String name)`	Accessor for the mapping information for the parameter with the specified name.
`StatementMappingIndex`	`getMappingForParameterPosition(int pos)`	Convenience method to return the mapping for the parameter that is at the specified position.
`java.lang.String[]`	`getParameterNames()`
`boolean`	`isEmpty()`
`java.lang.String`	`toString()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Field Detail
  - mappings
```
java.util.Map<java.lang.String,StatementMappingIndex> mappings
```
    Mappings for the parameters keyed by the parameter name.
- Constructor Detail
  - StatementParameterMapping
```
public StatementParameterMapping()
```
- Method Detail
  - getMappingForParameter
```
public StatementMappingIndex getMappingForParameter(java.lang.String name)
```
    Accessor for the mapping information for the parameter with the specified name.
    
    Parameters:
    
    name - Parameter name
    
    Returns:
    
    The mapping information
  - getMappingForParameterPosition
```
public StatementMappingIndex getMappingForParameterPosition(int pos)
```
    Convenience method to return the mapping for the parameter that is at the specified position. The position should use the same origin as the parameter positions here.
    
    Parameters:
    
    pos - The position
    
    Returns:
    
    The mapping (if any)
  - addMappingForParameter
```
public void addMappingForParameter(java.lang.String name,
                                   StatementMappingIndex mapping)
```
  - getParameterNames
```
public java.lang.String[] getParameterNames()
```
  - isEmpty
```
public boolean isEmpty()
```
  - toString
```
public java.lang.String toString()
```
    Overrides:
    
    toString in class java.lang.Object