All Known Subinterfaces:

ParameterMetadataImplementor, ProcedureParameterMetadataImplementor
```
public interface ParameterMetadata
```
Access to known information about the parameters for a query.

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`boolean`	`containsReference(QueryParameter<?> parameter)`	Is this parameter reference registered in this collection?
`default <T> AllowableParameterType<T>`	`getInferredParameterType(QueryParameter<T> parameter)`
`Set<String>`	`getNamedParameterNames()`	Return the names of all named parameters of the query.
`Set<Integer>`	`getOrdinalParameterLabels()`
`int`	`getParameterCount()`	The total number of registered parameters.
`QueryParameter<?>`	`getQueryParameter(int positionLabel)`	Resolve the QueryParameter reference registered here under the given position/ordinal label, if one.
`QueryParameter<?>`	`getQueryParameter(String name)`	Resolve the QueryParameter reference registered here under the given name, if one.
`Set<? extends QueryParameter<?>>`	`getRegistrations()`
`boolean`	`hasNamedParameters()`	Does this parameter set contain any named parameters?
`boolean`	`hasPositionalParameters()`	Does this parameter set contain any positional parameters?
`<P> QueryParameter<P>`	`resolve(Parameter<P> param)`	A deeper resolution attempt from a JPA parameter reference to Hibernate's contract.
`void`	`visitRegistrations(Consumer<? extends QueryParameter<?>> action)`	General purpose visitation using functional

- Method Detail
  - getParameterCount
```
int getParameterCount()
```
    The total number of registered parameters.
  - getQueryParameter
```
QueryParameter<?> getQueryParameter(String name)
```
    Resolve the QueryParameter reference registered here under the given name, if one.
    
    Returns:
    
    The registered parameter
    
    Throws:
    
    IllegalArgumentException - if no parameter is registered under that name
  - getQueryParameter
```
QueryParameter<?> getQueryParameter(int positionLabel)
```
    Resolve the QueryParameter reference registered here under the given position/ordinal label, if one.
    
    Returns:
    
    The registered parameter
    
    Throws:
    
    IllegalArgumentException - if no parameter is registered under that label
  - resolve
```
<P> QueryParameter<P> resolve(Parameter<P> param)
```
    A deeper resolution attempt from a JPA parameter reference to Hibernate's contract. Generally should return the same param reference. According to the spec, only Parameter references obtained from the provider are valid.
  - getInferredParameterType
```
default <T> AllowableParameterType<T> getInferredParameterType(QueryParameter<T> parameter)
```
  - containsReference
```
boolean containsReference(QueryParameter<?> parameter)
```
    Is this parameter reference registered in this collection?
  - getRegistrations
```
Set<? extends QueryParameter<?>> getRegistrations()
```
  - visitRegistrations
```
void visitRegistrations(Consumer<? extends QueryParameter<?>> action)
```
    General purpose visitation using functional
  - hasNamedParameters
```
boolean hasNamedParameters()
```
    Does this parameter set contain any named parameters?
    
    Returns:
    
    true if there are named parameters; false otherwise.
  - getNamedParameterNames
```
Set<String> getNamedParameterNames()
```
    Return the names of all named parameters of the query.
    
    Returns:
    
    the parameter names
  - hasPositionalParameters
```
boolean hasPositionalParameters()
```
    Does this parameter set contain any positional parameters?
    
    Returns:
    
    true if there are positional parameters; false otherwise.
  - getOrdinalParameterLabels
```
Set<Integer> getOrdinalParameterLabels()
```

Interface ParameterMetadata

Method Summary

Method Detail

getParameterCount

getQueryParameter

getQueryParameter

resolve

getInferredParameterType

containsReference

getRegistrations

visitRegistrations

hasNamedParameters

getNamedParameterNames

hasPositionalParameters

getOrdinalParameterLabels