forked from opengaussexamples/examples
Add recursive parsing function
This commit is contained in:
XudongXie
parent
98a3b240a1
commit
54bef7c864
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@ -8,32 +8,7 @@
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<change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
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<change beforePath="$PROJECT_DIR$/src/main/java/generator/OpenGaussGenerator.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/generator/OpenGaussGenerator.java" afterDir="false" />
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<change beforePath="$PROJECT_DIR$/src/main/java/parser/OracleParser.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/parser/OracleParser.java" afterDir="false" />
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<change beforePath="$PROJECT_DIR$/src/main/java/parser/ast/alterTable/AlterAddColumnNode.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/parser/ast/altertable/AlterAddColumnNode.java" afterDir="false" />
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<change beforePath="$PROJECT_DIR$/src/main/java/parser/ast/alterTable/AlterAddConstraintNode.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/parser/ast/altertable/AlterAddConstraintNode.java" afterDir="false" />
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<change beforePath="$PROJECT_DIR$/src/main/java/parser/ast/alterTable/AlterDropColumnNode.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/parser/ast/altertable/AlterDropColumnNode.java" afterDir="false" />
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<change beforePath="$PROJECT_DIR$/src/main/java/parser/ast/alterTable/AlterDropConstraintNode.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/parser/ast/altertable/AlterDropConstraintNode.java" afterDir="false" />
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<change beforePath="$PROJECT_DIR$/src/main/java/parser/ast/alterTable/AlterEndNode.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/parser/ast/altertable/AlterEndNode.java" afterDir="false" />
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<change beforePath="$PROJECT_DIR$/src/main/java/parser/ast/alterTable/AlterModifyColumnNode.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/parser/ast/altertable/AlterModifyColumnNode.java" afterDir="false" />
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<change beforePath="$PROJECT_DIR$/src/main/java/parser/ast/alterTable/AlterNode.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/parser/ast/altertable/AlterNode.java" afterDir="false" />
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<change beforePath="$PROJECT_DIR$/src/main/java/parser/ast/alterTable/AlterObjNode.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/parser/ast/altertable/AlterObjNode.java" afterDir="false" />
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<change beforePath="$PROJECT_DIR$/src/main/java/parser/ast/alterTable/AlterRenameColumnNode.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/parser/ast/altertable/AlterRenameColumnNode.java" afterDir="false" />
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<change beforePath="$PROJECT_DIR$/src/main/java/parser/ast/alterTable/AlterRenameTableNode.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/parser/ast/altertable/AlterRenameTableNode.java" afterDir="false" />
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<change beforePath="$PROJECT_DIR$/src/main/java/parser/ast/caseWhen/CaseConditionNode.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/parser/ast/casewhen/CaseConditionNode.java" afterDir="false" />
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<change beforePath="$PROJECT_DIR$/src/main/java/parser/ast/caseWhen/CaseElseNode.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/parser/ast/casewhen/CaseElseNode.java" afterDir="false" />
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<change beforePath="$PROJECT_DIR$/src/main/java/parser/ast/caseWhen/CaseEndNode.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/parser/ast/casewhen/CaseEndNode.java" afterDir="false" />
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<change beforePath="$PROJECT_DIR$/src/main/java/parser/ast/caseWhen/CaseThenNode.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/parser/ast/casewhen/CaseThenNode.java" afterDir="false" />
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<change beforePath="$PROJECT_DIR$/src/main/java/parser/ast/createTable/CRTEndNode.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/parser/ast/createtable/CRTEndNode.java" afterDir="false" />
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<change beforePath="$PROJECT_DIR$/src/main/java/parser/ast/createTable/ColumnNode.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/parser/ast/createtable/ColumnNode.java" afterDir="false" />
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<change beforePath="$PROJECT_DIR$/src/main/java/parser/ast/createTable/CreateTabNode.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/parser/ast/createtable/CreateTabNode.java" afterDir="false" />
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<change beforePath="$PROJECT_DIR$/src/main/java/parser/ast/createTable/TableConstraintNode.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/parser/ast/createtable/TableConstraintNode.java" afterDir="false" />
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<change beforePath="$PROJECT_DIR$/src/main/java/parser/ast/createTable/TableNode.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/parser/ast/createtable/TableNode.java" afterDir="false" />
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<change beforePath="$PROJECT_DIR$/src/main/java/parser/ast/createTable/TableTypeNode.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/parser/ast/createtable/TableTypeNode.java" afterDir="false" />
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<change beforePath="$PROJECT_DIR$/src/main/java/parser/ast/iFELSIF/ELSENode.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/parser/ast/ifelsif/ELSENode.java" afterDir="false" />
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<change beforePath="$PROJECT_DIR$/src/main/java/parser/ast/iFELSIF/ELSIFActionNode.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/parser/ast/ifelsif/ELSIFActionNode.java" afterDir="false" />
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<change beforePath="$PROJECT_DIR$/src/main/java/parser/ast/iFELSIF/ELSIFConditionNode.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/parser/ast/ifelsif/ELSIFConditionNode.java" afterDir="false" />
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<change beforePath="$PROJECT_DIR$/src/main/java/parser/ast/iFELSIF/EndIFNode.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/parser/ast/ifelsif/EndIFNode.java" afterDir="false" />
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<change beforePath="$PROJECT_DIR$/src/main/java/parser/ast/iFELSIF/IFActionNode.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/parser/ast/ifelsif/IFActionNode.java" afterDir="false" />
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<change beforePath="$PROJECT_DIR$/src/main/java/parser/ast/iFELSIF/IFConditionNode.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/parser/ast/ifelsif/IFConditionNode.java" afterDir="false" />
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<change beforePath="$PROJECT_DIR$/src/test/java/TestFunction.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/test/java/TestFunction.java" afterDir="false" />
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</list>
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<option name="SHOW_DIALOG" value="false" />
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<option name="HIGHLIGHT_CONFLICTS" value="true" />
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@ -66,58 +41,55 @@
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<option name="hideEmptyMiddlePackages" value="true" />
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<option name="showLibraryContents" value="true" />
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</component>
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<component name="PropertiesComponent">{
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"keyToString": {
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"Application.Main.executor": "Run",
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"JUnit.testAlterTable.executor": "Run",
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"JUnit.testAlterTable.testAlterTable.executor": "Run",
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"JUnit.testCaseWhen.test.executor": "Run",
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"JUnit.testCommitRollbackExec.test.executor": "Run",
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"JUnit.testCreateTable.executor": "Run",
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"JUnit.testCreateTable.test.executor": "Run",
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"JUnit.testDelete.test.executor": "Run",
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"JUnit.testDropTable.test.executor": "Run",
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"JUnit.testException.executor": "Run",
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"JUnit.testException.test.executor": "Run",
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"JUnit.testFunction.test.executor": "Run",
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"JUnit.testIfElse.test.executor": "Run",
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"JUnit.testInsert.test.executor": "Run",
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"JUnit.testJoin.executor": "Run",
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"JUnit.testJoin.test.executor": "Run",
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"JUnit.testLoop.test.executor": "Run",
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"JUnit.testPL.executor": "Run",
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"JUnit.testProcedure.test.executor": "Run",
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"JUnit.testSelect.executor": "Run",
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"JUnit.testSelect.test.executor": "Run",
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"JUnit.testTrigger.executor": "Run",
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"JUnit.testTrigger.test.executor": "Run",
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"JUnit.testUpdate.executor": "Run",
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"JUnit.testView.executor": "Run",
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"RunOnceActivity.OpenProjectViewOnStart": "true",
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"RunOnceActivity.ShowReadmeOnStart": "true",
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"git-widget-placeholder": "master",
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"kotlin-language-version-configured": "true",
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"last_opened_file_path": "F:/oracle2opengauss/examples/sqlTranslate",
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"project.structure.last.edited": "Project",
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"project.structure.proportion": "0.0",
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"project.structure.side.proportion": "0.0",
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"settings.editor.selected.configurable": "preferences.pluginManager"
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<component name="PropertiesComponent"><![CDATA[{
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"keyToString": {
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"Application.Main.executor": "Run",
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"JUnit.TestFunction.executor": "Run",
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"JUnit.TestFunction.test.executor": "Run",
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"JUnit.TestPL.test.executor": "Run",
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"JUnit.TestProcedure.test.executor": "Run",
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"JUnit.TestTrigger.test.executor": "Run",
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"JUnit.testAlterTable.executor": "Run",
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"JUnit.testAlterTable.testAlterTable.executor": "Run",
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"JUnit.testCaseWhen.test.executor": "Run",
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"JUnit.testCommitRollbackExec.test.executor": "Run",
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"JUnit.testCreateTable.executor": "Run",
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"JUnit.testCreateTable.test.executor": "Run",
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"JUnit.testDelete.test.executor": "Run",
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"JUnit.testDropTable.test.executor": "Run",
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"JUnit.testException.executor": "Run",
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"JUnit.testException.test.executor": "Run",
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"JUnit.testFunction.test.executor": "Run",
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"JUnit.testIfElse.test.executor": "Run",
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"JUnit.testInsert.test.executor": "Run",
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"JUnit.testJoin.executor": "Run",
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"JUnit.testJoin.test.executor": "Run",
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"JUnit.testLoop.test.executor": "Run",
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"JUnit.testPL.executor": "Run",
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"JUnit.testProcedure.test.executor": "Run",
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"JUnit.testSelect.executor": "Run",
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"JUnit.testSelect.test.executor": "Run",
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"JUnit.testTrigger.executor": "Run",
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"JUnit.testTrigger.test.executor": "Run",
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"JUnit.testUpdate.executor": "Run",
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"JUnit.testView.executor": "Run",
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"RunOnceActivity.OpenProjectViewOnStart": "true",
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"RunOnceActivity.ShowReadmeOnStart": "true",
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"git-widget-placeholder": "master",
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"kotlin-language-version-configured": "true",
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"last_opened_file_path": "F:/oracle2opengauss/examples/sqlTranslate",
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"project.structure.last.edited": "Project",
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"project.structure.proportion": "0.0",
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"project.structure.side.proportion": "0.0",
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"settings.editor.selected.configurable": "preferences.pluginManager"
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}
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}</component>
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<component name="RunManager" selected="Application.Main">
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<configuration name="Main" type="Application" factoryName="Application" temporary="true" nameIsGenerated="true">
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<option name="MAIN_CLASS_NAME" value="Main" />
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<module name="sqlTranslate" />
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<method v="2">
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<option name="Make" enabled="true" />
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</method>
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</configuration>
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<configuration name="TestCaseWhen.test" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
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}]]></component>
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<component name="RunManager" selected="JUnit.TestProcedure.test">
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<configuration name="TestFunction" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
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<module name="sqlTranslate" />
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<option name="PACKAGE_NAME" value="" />
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<option name="MAIN_CLASS_NAME" value="TestCaseWhen" />
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<option name="METHOD_NAME" value="test" />
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<option name="TEST_OBJECT" value="method" />
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<option name="MAIN_CLASS_NAME" value="TestFunction" />
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<option name="TEST_OBJECT" value="class" />
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<method v="2">
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<option name="Make" enabled="true" />
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</method>
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@ -132,11 +104,22 @@
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<option name="Make" enabled="true" />
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</method>
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</configuration>
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<configuration name="TestTrigger" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
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<configuration name="TestPL.test" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
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<module name="sqlTranslate" />
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<option name="PACKAGE_NAME" value="" />
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<option name="MAIN_CLASS_NAME" value="TestTrigger" />
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<option name="TEST_OBJECT" value="class" />
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<option name="MAIN_CLASS_NAME" value="TestPL" />
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<option name="METHOD_NAME" value="test" />
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<option name="TEST_OBJECT" value="method" />
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<method v="2">
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<option name="Make" enabled="true" />
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</method>
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</configuration>
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<configuration name="TestProcedure.test" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
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<module name="sqlTranslate" />
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<option name="PACKAGE_NAME" value="" />
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<option name="MAIN_CLASS_NAME" value="TestProcedure" />
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<option name="METHOD_NAME" value="test" />
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<option name="TEST_OBJECT" value="method" />
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<method v="2">
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<option name="Make" enabled="true" />
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</method>
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@ -152,19 +135,19 @@
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</method>
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</configuration>
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<list>
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<item itemvalue="Application.Main" />
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<item itemvalue="JUnit.TestCaseWhen.test" />
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<item itemvalue="JUnit.TestFunction" />
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<item itemvalue="JUnit.TestPL.test" />
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<item itemvalue="JUnit.TestProcedure.test" />
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<item itemvalue="JUnit.TestFunction.test" />
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<item itemvalue="JUnit.TestTrigger" />
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<item itemvalue="JUnit.TestTrigger.test" />
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</list>
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<recent_temporary>
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<list>
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<item itemvalue="Application.Main" />
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<item itemvalue="JUnit.TestTrigger.test" />
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<item itemvalue="JUnit.TestProcedure.test" />
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<item itemvalue="JUnit.TestFunction.test" />
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<item itemvalue="JUnit.TestTrigger" />
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<item itemvalue="JUnit.TestCaseWhen.test" />
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<item itemvalue="JUnit.TestFunction" />
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<item itemvalue="JUnit.TestTrigger.test" />
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<item itemvalue="JUnit.TestPL.test" />
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</list>
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</recent_temporary>
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</component>
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@ -520,7 +503,7 @@
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<option name="project" value="LOCAL" />
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<updated>1726633703475</updated>
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</task>
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<option name="localTasksCounter" value="109" />
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<option name="localTasksCounter" value="110" />
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<servers />
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</component>
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<component name="Vcs.Log.Tabs.Properties">
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@ -463,7 +463,7 @@ public class OpenGaussGenerator {
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String output = "";
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List<Token> outputObj = new ArrayList<>();
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for (Token token: lexer.getTokens()) {
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if (token.hasType(Token.TokenType.STRING)) {
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if (token.hasType(Token.TokenType.STRING) || token.hasType(Token.TokenType.NUMBER)) {
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output += token.getValue().replace("'", "");
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}
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else if (token.hasType(Token.TokenType.IDENTIFIER) || token.hasType(Token.TokenType.KEYWORD)) {
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@ -657,6 +657,9 @@ public class OpenGaussGenerator {
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CommonConvert(currentNode);
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break;
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}
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else {
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CommonConvert(currentNode);
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}
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currentNode = currentNode.getFirstChild();
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}
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}
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@ -44,9 +44,13 @@ import java.util.List;
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public class OracleParser {
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private OracleLexer lexer;
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public OracleParser() {}
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public OracleParser(OracleLexer lexer) {
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this.lexer = lexer;
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}
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public void setLexer(OracleLexer lexer) {
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this.lexer = lexer;
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}
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public ASTNode parse()
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{
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try {
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@ -113,6 +117,35 @@ public class OracleParser {
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return null;
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}
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public ASTNode parseTokens(List<Token> parseTokens) {
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try {
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if ((parseTokens.get(0).getValue().equalsIgnoreCase("CREATE") && parseTokens.get(1).getValue().equalsIgnoreCase("TABLE")) ||
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(parseTokens.get(0).getValue().equalsIgnoreCase("CREATE") && parseTokens.get(2).getValue().equalsIgnoreCase("TEMPORARY") && parseTokens.get(3).getValue().equalsIgnoreCase("TABLE"))) {
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return parseCreateTab(parseTokens);
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} else if (parseTokens.get(0).getValue().equalsIgnoreCase("INSERT")) {
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return parseInsert(parseTokens);
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} else if (parseTokens.get(0).getValue().equalsIgnoreCase("DROP")) {
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return parseDrop(parseTokens);
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} else if (parseTokens.get(0).getValue().equalsIgnoreCase("SELECT")) {
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return parseSelect(parseTokens);
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} else if (parseTokens.get(0).getValue().equalsIgnoreCase("UPDATE")) {
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return parseUpdate(parseTokens);
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} else if (parseTokens.get(0).getValue().equalsIgnoreCase("DELETE")) {
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return parseDelete(parseTokens);
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} else if (parseTokens.get(0).getValue().equalsIgnoreCase("ALTER")) {
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return parseAlterTable(parseTokens);
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} else if (
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(parseTokens.get(0).getValue().equalsIgnoreCase("CREATE") && parseTokens.get(1).getValue().equalsIgnoreCase("OR") && parseTokens.get(2).getValue().equalsIgnoreCase("REPLACE") && parseTokens.get(3).getValue().equalsIgnoreCase("VIEW"))
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|| (parseTokens.get(0).getValue().equalsIgnoreCase("CREATE") && parseTokens.get(1).getValue().equalsIgnoreCase("VIEW"))
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) {
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return parseCreateView(parseTokens);
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}
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} catch (Exception e) {
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e.printStackTrace();
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}
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return null;
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}
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/**
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* CREATE TEMPORARY? TABLE _table ( (_column _type column_constraint), (_column _type column_constraint)* table_constraint?)
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*/
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@ -1894,8 +1927,18 @@ public class OracleParser {
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break;
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}
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}
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currentNode.addChild(childNode);
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currentNode = childNode;
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ASTNode bodystatementNode = parseTokens(childNode.getTokens());
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if (bodystatementNode != null) {
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currentNode.addChild(bodystatementNode);
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currentNode = bodystatementNode.getDeepestChild();
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ASTNode bodystatementEndNode = new ProcedurePLStatementNode();
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currentNode.addChild(bodystatementEndNode);
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currentNode = bodystatementEndNode;
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}
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else {
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currentNode.addChild(childNode);
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currentNode = childNode;
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}
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}
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}
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}
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@ -2201,11 +2244,52 @@ public class OracleParser {
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break;
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}
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}
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currentNode.addChild(childNode);
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currentNode = childNode;
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ASTNode bodystatementNode = parseTokens(childNode.getTokens());
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if (bodystatementNode != null) {
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currentNode.addChild(bodystatementNode);
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currentNode = bodystatementNode.getDeepestChild();
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ASTNode bodystatementEndNode = new FunctionBodyNode();
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currentNode.addChild(bodystatementEndNode);
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currentNode = bodystatementEndNode;
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}
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else {
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currentNode.addChild(childNode);
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currentNode = childNode;
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}
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}
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}
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}
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// match exception
|
||||
else if (parseTokens.get(i).hasType(Token.TokenType.KEYWORD) && parseTokens.get(i).getValue().equalsIgnoreCase("EXCEPTION")) {
|
||||
int index = -1;
|
||||
for (int j = i; j < parseTokens.size(); j++) {
|
||||
if (parseTokens.get(j).hasType(Token.TokenType.KEYWORD) && parseTokens.get(j).getValue().equalsIgnoreCase("END")) {
|
||||
index = j;
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (index == -1) {
|
||||
try {
|
||||
throw new ParseFailedException("There exists syntax error and no END block is found!");
|
||||
} catch (ParseFailedException e) {
|
||||
e.printStackTrace();
|
||||
}
|
||||
}
|
||||
ASTNode childNode = parseException(parseTokens.subList(i, index + 1));
|
||||
currentNode.addChild(childNode);
|
||||
currentNode = childNode.getDeepestChild();
|
||||
childNode = new FunctionEndNode();
|
||||
for (int j = index; j < parseTokens.size(); j++) {
|
||||
childNode.addToken(parseTokens.get(j));
|
||||
if (parseTokens.get(j).hasType(Token.TokenType.SYMBOL) && parseTokens.get(j).getValue().equals(";")) {
|
||||
i = j;
|
||||
break;
|
||||
}
|
||||
}
|
||||
currentNode.addChild(childNode);
|
||||
currentNode = childNode;
|
||||
break;
|
||||
}
|
||||
// match function end
|
||||
else if (parseTokens.get(i).hasType(Token.TokenType.KEYWORD) && parseTokens.get(i).getValue().equalsIgnoreCase("END")) {
|
||||
ASTNode childNode = new FunctionEndNode();
|
||||
|
|
@ -2427,8 +2511,18 @@ public class OracleParser {
|
|||
}
|
||||
childNode.addToken(parseTokens.get(j));
|
||||
}
|
||||
currentNode.addChild(childNode);
|
||||
currentNode = childNode;
|
||||
ASTNode bodystatementNode = parseTokens(childNode.getTokens());
|
||||
if (bodystatementNode != null) {
|
||||
currentNode.addChild(bodystatementNode);
|
||||
currentNode = bodystatementNode.getDeepestChild();
|
||||
ASTNode bodystatementEndNode = new TriggerBodyNode();
|
||||
currentNode.addChild(bodystatementEndNode);
|
||||
currentNode = bodystatementEndNode;
|
||||
}
|
||||
else {
|
||||
currentNode.addChild(childNode);
|
||||
currentNode = childNode;
|
||||
}
|
||||
}
|
||||
else if (parseTokens.get(i).hasType(Token.TokenType.KEYWORD) && parseTokens.get(i).getValue().equalsIgnoreCase("END")) {
|
||||
ASTNode childNode = new TriggerEndNode();
|
||||
|
|
@ -2529,8 +2623,18 @@ public class OracleParser {
|
|||
}
|
||||
childNode.addToken(parseTokens.get(j));
|
||||
}
|
||||
currentNode.addChild(childNode);
|
||||
currentNode = childNode;
|
||||
ASTNode bodystatementNode = parseTokens(childNode.getTokens());
|
||||
if (bodystatementNode != null) {
|
||||
currentNode.addChild(bodystatementNode);
|
||||
currentNode = bodystatementNode.getDeepestChild();
|
||||
ASTNode bodystatementEndNode = new PLBodyNode();
|
||||
currentNode.addChild(bodystatementEndNode);
|
||||
currentNode = bodystatementEndNode;
|
||||
}
|
||||
else {
|
||||
currentNode.addChild(childNode);
|
||||
currentNode = childNode;
|
||||
}
|
||||
}
|
||||
// match end
|
||||
else if (parseTokens.get(i).hasType(Token.TokenType.KEYWORD) && parseTokens.get(i).getValue().equalsIgnoreCase("END")) {
|
||||
|
|
|
|||
|
|
@ -18,7 +18,11 @@ public class TestFunction {
|
|||
" input_string VARCHAR2\n" +
|
||||
" ) RETURN NUMBER IS\n" +
|
||||
" BEGIN\n" +
|
||||
" SELECT name, salary INTO v_name, v_salary FROM employees WHERE employee_id = 100;\n" +
|
||||
" RETURN LENGTH(input_string);\n" +
|
||||
" EXCEPTION\n" +
|
||||
" WHEN OTHERS THEN\n" +
|
||||
" DBMS_OUTPUT.PUT_LINE('An error occurred: ' || SQLERRM);\n" +
|
||||
" END;");
|
||||
System.out.println("===== test of Function =====");
|
||||
System.out.println("The source DBMS is: " + CommonConfig.getSourceDB());
|
||||
|
|
|
|||
Loading…
Reference in New Issue