Examples with JavaTypeMapping org.datanucleus.store.rdbms.mapping.java.JavaTypeMapping used on opensource projects

Example 91 with JavaTypeMapping

use of org.datanucleus.store.rdbms.mapping.java.JavaTypeMapping in project datanucleus-rdbms by datanucleus.

the class SimpleNumericAggregateMethod 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) {
        throw new NucleusException(Localiser.msg("060002", getFunctionName(), expr));
    }
    if (args == null || args.size() != 1) {
        throw new NucleusException(getFunctionName() + " is only supported with a single argument");
    }
    if (stmt.getQueryGenerator().getCompilationComponent() == CompilationComponent.RESULT || stmt.getQueryGenerator().getCompilationComponent() == CompilationComponent.HAVING) {
        // FUNC(argExpr)
        // Use same java type as the argument
        SQLExpression argExpr = args.get(0);
        JavaTypeMapping m = argExpr.getJavaTypeMapping();
        return new AggregateNumericExpression(stmt, m, getFunctionName(), args);
    }
    ClassLoaderResolver clr = stmt.getQueryGenerator().getClassLoaderResolver();
    // Handle as Subquery "SELECT AVG(expr) FROM tbl"
    SQLExpression argExpr = args.get(0);
    SelectStatement subStmt = new SelectStatement(stmt, stmt.getRDBMSManager(), argExpr.getSQLTable().getTable(), argExpr.getSQLTable().getAlias(), null);
    subStmt.setClassLoaderResolver(clr);
    SQLExpressionFactory exprFactory = stmt.getSQLExpressionFactory();
    JavaTypeMapping mapping = stmt.getRDBMSManager().getMappingManager().getMappingWithDatastoreMapping(String.class, false, false, clr);
    String aggregateString = getFunctionName() + "(" + argExpr.toSQLText() + ")";
    SQLExpression aggExpr = exprFactory.newLiteral(subStmt, mapping, aggregateString);
    ((StringLiteral) aggExpr).generateStatementWithoutQuotes();
    subStmt.select(aggExpr, null);
    JavaTypeMapping subqMapping = exprFactory.getMappingForType(Integer.class, false);
    SQLExpression subqExpr = new NumericSubqueryExpression(stmt, subStmt);
    subqExpr.setJavaTypeMapping(subqMapping);
    return subqExpr;
}

Example 92 with JavaTypeMapping

use of org.datanucleus.store.rdbms.mapping.java.JavaTypeMapping in project datanucleus-rdbms by datanucleus.

the class TemporalMonthJavaMethod2 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, "MONTH_JAVA");
    SQLExpression one = ExpressionUtils.getLiteralForOne(stmt);
    RDBMSStoreManager storeMgr = stmt.getRDBMSManager();
    JavaTypeMapping mapping2 = storeMgr.getMappingManager().getMapping(String.class);
    SQLExpressionFactory exprFactory = stmt.getSQLExpressionFactory();
    SQLExpression mm = exprFactory.newLiteral(stmt, mapping2, "MM");
    ArrayList funcArgs = new ArrayList();
    funcArgs.add(invokedExpr);
    funcArgs.add(mm);
    ArrayList funcArgs2 = new ArrayList();
    funcArgs2.add(new StringExpression(stmt, stmt.getSQLExpressionFactory().getMappingForType(int.class, true), "TO_CHAR", funcArgs));
    // Delete one from the SQL "month" (origin=1) to be compatible with Java month (origin=0)
    NumericExpression numExpr = new NumericExpression(new NumericExpression(stmt, stmt.getSQLExpressionFactory().getMappingForType(int.class, true), "TO_NUMBER", funcArgs2), Expression.OP_SUB, one);
    numExpr.encloseInParentheses();
    return numExpr;
}

Example 93 with JavaTypeMapping

use of org.datanucleus.store.rdbms.mapping.java.JavaTypeMapping in project datanucleus-rdbms by datanucleus.

the class TemporalMonthJavaMethod3 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, "MONTH_JAVA");
    SQLExpression one = ExpressionUtils.getLiteralForOne(stmt);
    RDBMSStoreManager storeMgr = stmt.getRDBMSManager();
    JavaTypeMapping mapping2 = storeMgr.getMappingManager().getMapping(String.class);
    SQLExpressionFactory exprFactory = stmt.getSQLExpressionFactory();
    ArrayList funcArgs = new ArrayList();
    funcArgs.add(exprFactory.newLiteral(stmt, mapping2, "month"));
    funcArgs.add(invokedExpr);
    // Delete one from the SQL "month" (origin=1) to be compatible with Java month (origin=0)
    NumericExpression numExpr = new NumericExpression(new NumericExpression(stmt, stmt.getSQLExpressionFactory().getMappingForType(int.class, true), "date_part", funcArgs), Expression.OP_SUB, one);
    numExpr.encloseInParentheses();
    return numExpr;
}

Example 94 with JavaTypeMapping

use of org.datanucleus.store.rdbms.mapping.java.JavaTypeMapping in project datanucleus-rdbms by datanucleus.

the class TemporalDayMethod2 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, "DAY");
    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, "DD"));
    ArrayList funcArgs2 = new ArrayList();
    funcArgs2.add(new StringExpression(stmt, mapping, "TO_CHAR", funcArgs));
    return new NumericExpression(stmt, stmt.getSQLExpressionFactory().getMappingForType(int.class), "TO_NUMBER", funcArgs2);
}

Example 95 with JavaTypeMapping

use of org.datanucleus.store.rdbms.mapping.java.JavaTypeMapping in project datanucleus-rdbms by datanucleus.

the class TemporalDayMethod3 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, "DAY");
    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, "day"));
    funcArgs.add(invokedExpr);
    return new NumericExpression(stmt, stmt.getSQLExpressionFactory().getMappingForType(int.class), "date_part", funcArgs);
}