ParameterMetadata (hibernate-core JavaDocs)

All Known Subinterfaces:

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

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method and Description
`boolean`	`containsReference(QueryParameter<?> parameter)` Is this parameter reference registered in this collection?
`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?
`QueryParameter<?>`	`resolve(Parameter 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
```
QueryParameter<?> resolve(Parameter 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.
  - 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

containsReference

getRegistrations

visitRegistrations

hasNamedParameters

getNamedParameterNames

hasPositionalParameters

getOrdinalParameterLabels