Examples with SQLExpression org.datanucleus.store.rdbms.sql.expression.SQLExpression used on opensource projects

Example 86 with SQLExpression

use of org.datanucleus.store.rdbms.sql.expression.SQLExpression in project datanucleus-rdbms by datanucleus.

the class SumFunction method getExpression.

/* (non-Javadoc)
     * @see org.datanucleus.store.rdbms.sql.method.SQLMethod#getExpression(org.datanucleus.store.rdbms.sql.expression.SQLExpression, java.util.List)
     */
public SQLExpression getExpression(SQLStatement stmt, SQLExpression expr, List<SQLExpression> args) {
    if (expr == null) {
        if (args == null || args.size() != 1) {
            throw new NucleusException(getFunctionName() + " is only supported with a single argument");
        }
        // Use same java type as the argument
        SQLExpression argExpr = args.get(0);
        JavaTypeMapping m = null;
        Class cls = argExpr.getJavaTypeMapping().getJavaType();
        if (cls == Integer.class || cls == Short.class || cls == Long.class) {
            m = stmt.getSQLExpressionFactory().getMappingForType(Long.class, true);
        } else if (Number.class.isAssignableFrom(cls)) {
            m = stmt.getSQLExpressionFactory().getMappingForType(argExpr.getJavaTypeMapping().getJavaType(), true);
        } else {
            throw new NucleusUserException("Cannot perform static SUM with arg of type " + cls.getName());
        }
        return new AggregateNumericExpression(stmt, m, getFunctionName(), args);
    }
    throw new NucleusException(Localiser.msg("060002", getFunctionName(), expr));
}

Example 87 with SQLExpression

use of org.datanucleus.store.rdbms.sql.expression.SQLExpression in project datanucleus-rdbms by datanucleus.

the class TemporalSecondMethod6 method getExpression.

/* (non-Javadoc)
     * @see org.datanucleus.store.rdbms.sql.method.SQLMethod#getExpression(org.datanucleus.store.rdbms.sql.expression.SQLExpression, java.util.List)
     */
public SQLExpression getExpression(SQLStatement stmt, SQLExpression expr, List<SQLExpression> args) {
    SQLExpression invokedExpr = getInvokedExpression(expr, args, "SECOND");
    RDBMSStoreManager storeMgr = stmt.getRDBMSManager();
    JavaTypeMapping mapping = storeMgr.getMappingManager().getMapping(String.class);
    SQLExpressionFactory exprFactory = stmt.getSQLExpressionFactory();
    SQLExpression sec = exprFactory.newLiteral(stmt, mapping, "%S");
    ArrayList funcArgs = new ArrayList();
    funcArgs.add(sec);
    funcArgs.add(invokedExpr);
    return new NumericExpression(stmt, stmt.getSQLExpressionFactory().getMappingForType(int.class), "strftime", funcArgs);
}

Example 88 with SQLExpression

use of org.datanucleus.store.rdbms.sql.expression.SQLExpression in project datanucleus-rdbms by datanucleus.

the class TemporalYearMethod method getExpression.

/* (non-Javadoc)
     * @see org.datanucleus.store.rdbms.sql.method.SQLMethod#getExpression(org.datanucleus.store.rdbms.sql.expression.SQLExpression, java.util.List)
     */
public SQLExpression getExpression(SQLStatement stmt, SQLExpression expr, List<SQLExpression> args) {
    SQLExpression invokedExpr = getInvokedExpression(expr, args, "YEAR");
    ArrayList funcArgs = new ArrayList();
    funcArgs.add(invokedExpr);
    return new NumericExpression(stmt, stmt.getSQLExpressionFactory().getMappingForType(int.class, true), "YEAR", funcArgs);
}

Example 89 with SQLExpression

use of org.datanucleus.store.rdbms.sql.expression.SQLExpression in project datanucleus-rdbms by datanucleus.

the class TemporalYearMethod2 method getExpression.

/* (non-Javadoc)
     * @see org.datanucleus.store.rdbms.sql.method.SQLMethod#getExpression(org.datanucleus.store.rdbms.sql.expression.SQLExpression, java.util.List)
     */
public SQLExpression getExpression(SQLStatement stmt, SQLExpression expr, List<SQLExpression> args) {
    SQLExpression invokedExpr = getInvokedExpression(expr, args, "YEAR");
    RDBMSStoreManager storeMgr = stmt.getRDBMSManager();
    JavaTypeMapping mapping = storeMgr.getMappingManager().getMapping(String.class);
    ArrayList funcArgs = new ArrayList();
    funcArgs.add(invokedExpr);
    SQLExpressionFactory exprFactory = stmt.getSQLExpressionFactory();
    funcArgs.add(exprFactory.newLiteral(stmt, mapping, "YYYY"));
    ArrayList funcArgs2 = new ArrayList();
    funcArgs2.add(new StringExpression(stmt, mapping, "TO_CHAR", funcArgs));
    return new NumericExpression(stmt, stmt.getSQLExpressionFactory().getMappingForType(int.class, true), "TO_NUMBER", funcArgs2);
}

Example 90 with SQLExpression

use of org.datanucleus.store.rdbms.sql.expression.SQLExpression in project datanucleus-rdbms by datanucleus.

the class TemporalYearMethod3 method getExpression.

/* (non-Javadoc)
     * @see org.datanucleus.store.rdbms.sql.method.SQLMethod#getExpression(org.datanucleus.store.rdbms.sql.expression.SQLExpression, java.util.List)
     */
public SQLExpression getExpression(SQLStatement stmt, SQLExpression expr, List<SQLExpression> args) {
    SQLExpression invokedExpr = getInvokedExpression(expr, args, "YEAR");
    RDBMSStoreManager storeMgr = stmt.getRDBMSManager();
    JavaTypeMapping mapping = storeMgr.getMappingManager().getMapping(String.class);
    ArrayList funcArgs = new ArrayList();
    SQLExpressionFactory exprFactory = stmt.getSQLExpressionFactory();
    funcArgs.add(exprFactory.newLiteral(stmt, mapping, "year"));
    funcArgs.add(invokedExpr);
    return new NumericExpression(stmt, stmt.getSQLExpressionFactory().getMappingForType(int.class, true), "date_part", funcArgs);
}