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extended readMapping to columnMapping for jdbc connectors
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28 changes: 28 additions & 0 deletions
28
presto-base-jdbc/src/main/java/com/facebook/presto/plugin/jdbc/BooleanWriteFunction.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,28 @@ | ||
| /* | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
| package com.facebook.presto.plugin.jdbc; | ||
|
|
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| import java.sql.PreparedStatement; | ||
| import java.sql.SQLException; | ||
|
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| public interface BooleanWriteFunction | ||
| extends WriteFunction | ||
| { | ||
| default Class<?> getJavaType() | ||
| { | ||
| return boolean.class; | ||
| } | ||
|
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| void set(PreparedStatement statement, int index, boolean value) throws SQLException; | ||
| } |
85 changes: 85 additions & 0 deletions
85
presto-base-jdbc/src/main/java/com/facebook/presto/plugin/jdbc/ColumnMapping.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,85 @@ | ||
| /* | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
| package com.facebook.presto.plugin.jdbc; | ||
|
|
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| import com.facebook.presto.common.type.Type; | ||
|
|
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| import static com.google.common.base.Preconditions.checkArgument; | ||
| import static java.util.Objects.requireNonNull; | ||
|
|
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| public class ColumnMapping | ||
| { | ||
| private final Type type; | ||
| private final ReadFunction readFunction; | ||
| private final WriteFunction writeFunction; | ||
|
|
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| private ColumnMapping(Type type, ReadFunction readFunction, WriteFunction writeFunction) | ||
| { | ||
| this.type = requireNonNull(type, "type is null"); | ||
| this.readFunction = requireNonNull(readFunction, "readFunction is null"); | ||
| this.writeFunction = requireNonNull(writeFunction, "writeFunction is null"); | ||
| checkArgument( | ||
| type.getJavaType() == readFunction.getJavaType(), | ||
| "Presto type %s is not compatible with read function %s returning %s", | ||
| type, | ||
| readFunction, | ||
| readFunction.getJavaType()); | ||
| checkArgument( | ||
| type.getJavaType() == writeFunction.getJavaType(), | ||
| "Presto type %s is not compatible with write function %s accepting %s", | ||
| type, | ||
| writeFunction, | ||
| writeFunction.getJavaType()); | ||
| } | ||
|
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| public static ColumnMapping booleanMapping(Type prestoType, BooleanReadFunction readFunction, BooleanWriteFunction writeFunction) | ||
| { | ||
| return new ColumnMapping(prestoType, readFunction, writeFunction); | ||
| } | ||
|
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| public static ColumnMapping longMapping(Type prestoType, LongReadFunction readFunction, LongWriteFunction writeFunction) | ||
| { | ||
| return new ColumnMapping(prestoType, readFunction, writeFunction); | ||
| } | ||
|
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| public static ColumnMapping doubleMapping(Type prestoType, DoubleReadFunction readFunction, DoubleWriteFunction writeFunction) | ||
| { | ||
| return new ColumnMapping(prestoType, readFunction, writeFunction); | ||
| } | ||
|
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| public static ColumnMapping sliceMapping(Type prestoType, SliceReadFunction readFunction, SliceWriteFunction writeFunction) | ||
| { | ||
| return new ColumnMapping(prestoType, readFunction, writeFunction); | ||
| } | ||
|
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| public static ColumnMapping objectMapping(Type prestoType, ObjectReadFunction readFunction, ObjectWriteFunction writeFunction) | ||
| { | ||
| return new ColumnMapping(prestoType, readFunction, writeFunction); | ||
| } | ||
|
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| public Type getType() | ||
| { | ||
| return type; | ||
| } | ||
|
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| public ReadFunction getReadFunction() | ||
| { | ||
| return readFunction; | ||
| } | ||
|
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| public WriteFunction getWriteFunction() | ||
| { | ||
| return writeFunction; | ||
| } | ||
| } |
28 changes: 28 additions & 0 deletions
28
presto-base-jdbc/src/main/java/com/facebook/presto/plugin/jdbc/DoubleWriteFunction.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,28 @@ | ||
| /* | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
| package com.facebook.presto.plugin.jdbc; | ||
|
|
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| import java.sql.PreparedStatement; | ||
| import java.sql.SQLException; | ||
|
|
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| public interface DoubleWriteFunction | ||
| extends WriteFunction | ||
| { | ||
| default Class<?> getJavaType() | ||
| { | ||
| return double.class; | ||
| } | ||
|
|
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| void set(PreparedStatement statement, int index, double value) throws SQLException; | ||
| } |
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