// This Source Code is in the Public Domain per: http://unlicense.org
package org.litesoft.orsup.base;

import org.litesoft.commonfoundation.base.*;
import org.litesoft.core.*;
import org.litesoft.core.simpletypes.nonpublic.*;
import org.litesoft.orsup.nonpublic.*;
import org.litesoft.orsup.selection.*;

/**
 * Limited Class due to inability to convert to/from String for any type - currently limited to Long & String
 */
public final class UniqueKeySingle extends AbstractUniqueKeyObject implements SQLvalueable<Object> {
    private static final long serialVersionUID = 1L;

    private final Object mID;
    transient private AttributeAccessorSCD mAASCD;

    public UniqueKeySingle( PersistentObject<?> pPO, AttributeAccessorSCD<PersistentObject<?>> pAASCD ) {
        IllegalArgument.ifNull( "PersistentObject", pPO );
        IllegalArgument.ifNull( "AttributeAccessorSCDs", mAASCD = pAASCD );
        //noinspection unchecked
        mID = mAASCD.db_getValueOnPO( pPO );
    }

    public UniqueKeySingle( String pFromString, AttributeAccessorSCD pAASCD ) {
        mID = convertIDfrom( nullifyfromString( pFromString ), mAASCD = pAASCD );
    }

    public UniqueKeySingle( AttributeAccessorSCD pAASCD, Object pID ) {
        mAASCD = pAASCD;
        mID = pID;
    }

    @Override
    protected int calcHashCode() {
        return EqualSupport.calcHashCode( mID );
    }

    @Override
    protected boolean equalsNotNullNotUs( PersistentObjectUniqueKey pThem ) {
        return (pThem instanceof UniqueKeySingle) && EqualSupport.equal( this.mID, ((UniqueKeySingle) pThem).mID );
    }

    @Override
    protected String generateToStringForConstructor() {
        return idToString( mID );
    }

    @Override
    public WhereClause convertToWC() {
        if ( mAASCD == null ) {
            throw new IllegalStateException( "convertToWC not allowed for transferred UniqueKeys" );
        }
        return WhereClauseFactory.INSTANCE.isEqual( mAASCD, mID );
    }

    @Override
    public Object toSQLvalue() {
        return mID;
    }
}