Package ch.tocco.nice2.persist.core.impl.entity

Class HashOfQueryFunction

java.lang.Object

ch.tocco.nice2.persist.core.impl.entity.HashOfQueryFunction

All Implemented Interfaces:

QueryFunction

@Component
public class HashOfQueryFunction
extends Object
implements QueryFunction

This query function makes it possible to use binaries in queries.

It simply substitutes the type binary with string for each PathNode since the binary is represented by its hash sum.

Usage:

 find SomeEntity where hashOf('binary_data') == string:"hash1234"
 

Constructor Summary

Constructors

Constructor	Description
HashOfQueryFunction(TypeManager typeManager)

Method Summary

Modifier and Type	Method	Description
String	getName()	The unique function name.
@Nullable Node	postCompile(Cursor cursor, FuncallNode functionRoot, EntityModel entityModel)	Applies this function to the given (sub)tree.

Methods inherited from class java.lang.Object

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

Constructor Details

HashOfQueryFunction

public HashOfQueryFunction(TypeManager typeManager)

Method Details

getName

public String getName()

Description copied from interface: QueryFunction

The unique function name.

Specified by:

getName in interface QueryFunction

postCompile

@Nullable
public @Nullable Node postCompile(Cursor cursor,
 FuncallNode functionRoot,
 EntityModel entityModel)
                           throws Exception

Description copied from interface: QueryFunction

Applies this function to the given (sub)tree.

Specified by:

postCompile in interface QueryFunction

Throws:

Exception