Examples with DerbyRpadEmulation org.hibernate.dialect.function.DerbyRpadEmulation used on opensource projects

Example 1 with DerbyRpadEmulation

use of org.hibernate.dialect.function.DerbyRpadEmulation in project hibernate-orm by hibernate.

the class DerbyDialect method initializeFunctionRegistry.

@Override
public void initializeFunctionRegistry(QueryEngine queryEngine) {
    super.initializeFunctionRegistry(queryEngine);
    final BasicTypeRegistry basicTypeRegistry = queryEngine.getTypeConfiguration().getBasicTypeRegistry();
    final BasicType<String> stringType = basicTypeRegistry.resolve(StandardBasicTypes.STRING);
    CommonFunctionFactory functionFactory = new CommonFunctionFactory(queryEngine);
    // Derby needs an actual argument type for aggregates like SUM, AVG, MIN, MAX to determine the result type
    functionFactory.aggregates(this, SqlAstNodeRenderingMode.NO_PLAIN_PARAMETER);
    queryEngine.getSqmFunctionRegistry().register("count", new CountFunction(this, queryEngine.getTypeConfiguration(), SqlAstNodeRenderingMode.NO_PLAIN_PARAMETER, "||", getCastTypeName(stringType, null, null, null), true));
    // AVG by default uses the input type, so we possibly need to cast the argument type, hence a special function
    functionFactory.avg_castingNonDoubleArguments(this, SqlAstNodeRenderingMode.DEFAULT);
    functionFactory.concat_pipeOperator();
    functionFactory.cot();
    functionFactory.chr_char();
    functionFactory.degrees();
    functionFactory.radians();
    functionFactory.log10();
    functionFactory.sinh();
    functionFactory.cosh();
    functionFactory.tanh();
    functionFactory.pi();
    functionFactory.rand();
    functionFactory.trim1();
    functionFactory.hourMinuteSecond();
    functionFactory.yearMonthDay();
    functionFactory.varPopSamp();
    functionFactory.stddevPopSamp();
    functionFactory.substring_substr();
    functionFactory.leftRight_substrLength();
    functionFactory.characterLength_length(SqlAstNodeRenderingMode.NO_PLAIN_PARAMETER);
    functionFactory.power_expLn();
    functionFactory.round_floor();
    functionFactory.bitLength_pattern("length(?1)*8");
    queryEngine.getSqmFunctionRegistry().register("concat", new CastingConcatFunction(this, "||", true, SqlAstNodeRenderingMode.NO_PLAIN_PARAMETER, queryEngine.getTypeConfiguration()));
    // no way I can see to pad with anything other than spaces
    queryEngine.getSqmFunctionRegistry().register("lpad", new DerbyLpadEmulation(queryEngine.getTypeConfiguration()));
    queryEngine.getSqmFunctionRegistry().register("rpad", new DerbyRpadEmulation(queryEngine.getTypeConfiguration()));
    queryEngine.getSqmFunctionRegistry().register("least", new CaseLeastGreatestEmulation(true));
    queryEngine.getSqmFunctionRegistry().register("greatest", new CaseLeastGreatestEmulation(false));
    queryEngine.getSqmFunctionRegistry().register("overlay", new InsertSubstringOverlayEmulation(queryEngine.getTypeConfiguration(), true));
}