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carlblancarlblan
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Addressing review comments regarding initializeFunctionRegistry()
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‎hibernate-community-dialects/src/main/java/org/hibernate/community/dialect/TimesTenDialect.java‎

Lines changed: 70 additions & 47 deletions
Original file line numberDiff line numberDiff line change
@@ -15,8 +15,10 @@
1515
import org.hibernate.community.dialect.sequence.SequenceInformationExtractorTimesTenDatabaseImpl;
1616
import org.hibernate.community.dialect.sequence.TimesTenSequenceSupport;
1717
import org.hibernate.dialect.Dialect;
18+
import org.hibernate.dialect.BooleanDecoder;
1819
import org.hibernate.dialect.RowLockStrategy;
1920
import org.hibernate.dialect.function.CommonFunctionFactory;
21+
import org.hibernate.query.sqm.produce.function.StandardFunctionReturnTypeResolvers;
2022
import org.hibernate.dialect.lock.LockingStrategy;
2123
import org.hibernate.dialect.lock.OptimisticForceIncrementLockingStrategy;
2224
import org.hibernate.dialect.lock.OptimisticLockingStrategy;
@@ -34,6 +36,7 @@
3436
import org.hibernate.metamodel.mapping.EntityMappingType;
3537
import org.hibernate.metamodel.spi.RuntimeModelCreationContext;
3638
import org.hibernate.persister.entity.Lockable;
39+
import org.hibernate.query.sqm.CastType;
3740
import org.hibernate.query.sqm.IntervalType;
3841
import org.hibernate.query.sqm.TemporalUnit;
3942
import org.hibernate.query.sqm.mutation.internal.temptable.GlobalTemporaryTableInsertStrategy;
@@ -42,6 +45,7 @@
4245
import org.hibernate.query.sqm.mutation.spi.SqmMultiTableMutationStrategy;
4346
import org.hibernate.sql.ast.SqlAstTranslator;
4447
import org.hibernate.sql.ast.SqlAstTranslatorFactory;
48+
import org.hibernate.sql.ast.SqlAstNodeRenderingMode;
4549
import org.hibernate.sql.ast.spi.StandardSqlAstTranslatorFactory;
4650
import org.hibernate.sql.ast.tree.Statement;
4751
import org.hibernate.sql.exec.spi.JdbcOperation;
@@ -188,61 +192,27 @@ public void initializeFunctionRegistry(FunctionContributions functionContributio
188192
final BasicType<Integer>intType = basicTypeRegistry.resolve( StandardBasicTypes.INTEGER );
189193

190194
// String Functions
191-
functionContributions.getFunctionRegistry().register(
192-
"rtrim", new StandardSQLFunction("rtrim", StandardBasicTypes.STRING)
193-
);
194-
functionContributions.getFunctionRegistry().register(
195-
"ltrim", new StandardSQLFunction("ltrim", StandardBasicTypes.STRING)
196-
);
197-
functionContributions.getFunctionRegistry().register(
198-
"length", new StandardSQLFunction("length", StandardBasicTypes.LONG)
199-
);
195+
functionFactory.trim2();
196+
functionFactory.characterLength_length( SqlAstNodeRenderingMode.DEFAULT );
200197
functionFactory.concat_pipeOperator();
201-
functionContributions.getFunctionRegistry().register(
202-
"to_char", new StandardSQLFunction("to_char", StandardBasicTypes.STRING)
203-
);
198+
functionFactory.toCharNumberDateTimestamp();
204199
functionFactory.char_chr();
205200
functionFactory.instr();
206201
functionFactory.substr();
207-
functionContributions.getFunctionRegistry().register(
208-
"str", new StandardSQLFunction("to_char", StandardBasicTypes.STRING)
209-
);
210-
functionContributions.getFunctionRegistry().register(
211-
"substring", new StandardSQLFunction( "substr", StandardBasicTypes.STRING )
212-
);
202+
functionFactory.substring_substr();
213203
functionFactory.soundex();
214204

215205
// Date/Time Functions
216-
functionContributions.getFunctionRegistry().register(
217-
"to_date", new StandardSQLFunction("to_date", StandardBasicTypes.TIMESTAMP)
218-
);
219206
functionContributions.getFunctionRegistry().register(
220207
"sysdate", new CurrentFunction("sysdate", "sysdate", timestampType)
221208
);
222209
functionContributions.getFunctionRegistry().register(
223210
"getdate", new StandardSQLFunction("getdate", StandardBasicTypes.TIMESTAMP)
224211
);
225212

226-
functionContributions.getFunctionRegistry().register(
227-
"current_date", new CurrentFunction("sysdate", "sysdate", dateType)
228-
);
229-
functionContributions.getFunctionRegistry().register(
230-
"current_time", new CurrentFunction("sysdate", "sysdate", timeType)
231-
);
232-
functionContributions.getFunctionRegistry().register(
233-
"current_timestamp", new CurrentFunction("sysdate", "sysdate", timestampType)
234-
);
235-
functionContributions.getFunctionRegistry().register(
236-
"to_timestamp", new StandardSQLFunction("to_timestamp", StandardBasicTypes.TIMESTAMP)
237-
);
238-
239213
// Multi-param date dialect functions
240-
functionContributions.getFunctionRegistry().register(
241-
"add_months", new StandardSQLFunction("add_months", StandardBasicTypes.DATE)
242-
);
243-
functionContributions.getFunctionRegistry().register(
244-
"months_between", new StandardSQLFunction("months_between", StandardBasicTypes.FLOAT)
245-
);
214+
functionFactory.addMonths();
215+
functionFactory.monthsBetween();
246216

247217
// Math functions
248218
functionFactory.ceiling_ceil();
@@ -253,15 +223,12 @@ public void initializeFunctionRegistry(FunctionContributions functionContributio
253223
functionContributions.getFunctionRegistry().register(
254224
"trunc", new StandardSQLFunction("trunc")
255225
);
226+
functionContributions.getFunctionRegistry().registerAlternateKey( "truncate", "trunc" );
256227
functionContributions.getFunctionRegistry().register(
257228
"round", new StandardSQLFunction("round")
258229
);
259230

260231
// Bitwise functions
261-
functionContributions.getFunctionRegistry().register(
262-
"bitnot", new StandardSQLFunction("bitnot", StandardBasicTypes.INTEGER)
263-
);
264-
265232
functionContributions.getFunctionRegistry()
266233
.patternDescriptorBuilder( "bitor", "(?1+?2-bitand(?1,?2))")
267234
.setExactArgumentCount( 2 )
@@ -277,9 +244,12 @@ public void initializeFunctionRegistry(FunctionContributions functionContributio
277244
.register();
278245

279246
// Misc. functions
280-
functionContributions.getFunctionRegistry().register(
281-
"nvl", new StandardSQLFunction("nvl")
282-
);
247+
functionContributions.getFunctionRegistry().namedDescriptorBuilder( "nvl" )
248+
.setMinArgumentCount( 2 )
249+
.setArgumentTypeResolver( StandardFunctionArgumentTypeResolvers.ARGUMENT_OR_IMPLIED_RESULT_TYPE )
250+
.setReturnTypeResolver( StandardFunctionReturnTypeResolvers.useFirstNonNull() )
251+
.register();
252+
283253
functionContributions.getFunctionRegistry().register(
284254
"user", new CurrentFunction("user", "user", stringType)
285255
);
@@ -574,6 +544,11 @@ public String currentTime() {
574544
return "sysdate";
575545
}
576546

547+
@Override
548+
public String currentTimestamp() {
549+
return "sysdate";
550+
}
551+
577552
@Override
578553
public int getMaxVarcharLength() {
579554
// 1 to 4,194,304 bytes according to TimesTen Doc
@@ -606,4 +581,52 @@ public String getFromDualForSelectOnly() {
606581
return " from dual";
607582
}
608583

584+
@Override
585+
public String castPattern(CastType from, CastType to) {
586+
String result;
587+
switch ( to ) {
588+
case INTEGER:
589+
case LONG:
590+
result = BooleanDecoder.toInteger( from );
591+
if ( result != null ) {
592+
return result;
593+
}
594+
break;
595+
case STRING:
596+
switch ( from ) {
597+
case BOOLEAN:
598+
case INTEGER_BOOLEAN:
599+
case TF_BOOLEAN:
600+
case YN_BOOLEAN:
601+
return BooleanDecoder.toString( from );
602+
case DATE:
603+
return "to_char(?1,'YYYY-MM-DD')";
604+
case TIME:
605+
return "to_char(?1,'HH24:MI:SS')";
606+
case TIMESTAMP:
607+
return "to_char(?1,'YYYY-MM-DD HH24:MI:SS.FF9')";
608+
}
609+
break;
610+
case CLOB:
611+
return "to_clob(?1)";
612+
case DATE:
613+
if ( from == CastType.STRING ) {
614+
return "to_date(?1,'YYYY-MM-DD')";
615+
}
616+
break;
617+
case TIME:
618+
if ( from == CastType.STRING ) {
619+
return "to_date(?1,'HH24:MI:SS')";
620+
}
621+
break;
622+
case TIMESTAMP:
623+
if ( from == CastType.STRING ) {
624+
return "to_timestamp(?1,'YYYY-MM-DD HH24:MI:SS.FF9')";
625+
}
626+
break;
627+
}
628+
return super.castPattern(from, to);
629+
}
630+
631+
609632
}

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