Module io.github.mmm.orm

Package io.github.mmm.orm.param

Class CriteriaParametersNamed

java.lang.Object

io.github.mmm.orm.param.AbstractCriteriaParameters

io.github.mmm.orm.param.CriteriaParametersNamed

All Implemented Interfaces:

io.github.mmm.property.criteria.CriteriaParameters<CriteriaParameterImpl<?>>, Iterable<CriteriaParameterImpl<?>>

public class CriteriaParametersNamed
extends AbstractCriteriaParameters

CriteriaParameters using named parameters. It puts ":«name»" into the output and collects the parameters that can get accessed via AbstractCriteriaParameters.iterator() after the database statement has been formatted and can be bound as parameters to the statement.

Since:

1.0.0

Constructor Summary

Constructors

Constructor	Description
CriteriaParametersNamed(AbstractDbDialect<?> dialect, boolean merge)	The constructor.

Method Summary

Modifier and Type	Method	Description
protected <V> CriteriaParameterImpl<V>	createParameter(int index, V value, DbType<V,?> dbType, io.github.mmm.property.criteria.CriteriaExpression<?> parent)
Map<String,Object>	getParameters()
boolean	isMerge()

Methods inherited from class io.github.mmm.orm.param.AbstractCriteriaParameters

apply, iterator, onLiteral

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface io.github.mmm.property.criteria.CriteriaParameters

cast

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Details

CriteriaParametersNamed

public CriteriaParametersNamed(AbstractDbDialect<?> dialect,
 boolean merge)

The constructor.

Parameters:

dialect - the AbstractDbDialect.

merge - the merge flag.

Method Details

isMerge

public boolean isMerge()

Returns:

true if two Literals with same parameter name should be joined if their values are equal to each other, false otherwise. So if your SQL has p.Property() = 42 AND q.Property() = 42 a merge would create just one parameter ":property" with the value "42" and without merge it would add two parameters ":property" and ":property2" both with the value "42".

createParameter

protected <V> CriteriaParameterImpl<V> createParameter(int index,
 V value,
 DbType<V,?> dbType,
 io.github.mmm.property.criteria.CriteriaExpression<?> parent)

Specified by:

createParameter in class AbstractCriteriaParameters

Type Parameters:

V - type of the value.

Parameters:

index - the index.

value - the value.

dbType - the the database type.

parent - the parent CriteriaExpression (see AbstractCriteriaParameters.onLiteral(Literal, AppendableWriter, CriteriaExpression)).

Returns:

the new CriteriaParameterImpl.

getParameters

public Map<String,Object> getParameters()

Returns:

the Map of collected named parameter values to bind to the database statement.