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package liquibase.change.core; |
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import liquibase.change.AbstractChange; |
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import liquibase.change.Change; |
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import liquibase.change.ChangeMetaData; |
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import liquibase.database.Database; |
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import liquibase.database.core.MSSQLDatabase; |
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import liquibase.database.core.SQLiteDatabase; |
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import liquibase.statement.SqlStatement; |
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import liquibase.statement.core.CreateViewStatement; |
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import liquibase.statement.core.DropViewStatement; |
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import liquibase.util.StringUtils; |
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import java.util.ArrayList; |
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import java.util.List; |
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public class CreateViewChange extends AbstractChange { |
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private String schemaName; |
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private String viewName; |
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private String selectQuery; |
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private Boolean replaceIfExists; |
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public CreateViewChange() { |
| 28 | 16 | super("createView", "Create View", ChangeMetaData.PRIORITY_DEFAULT); |
| 29 | 16 | } |
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public String getSchemaName() { |
| 32 | 45 | return schemaName; |
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} |
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public void setSchemaName(String schemaName) { |
| 36 | 1 | this.schemaName = StringUtils.trimToNull(schemaName); |
| 37 | 1 | } |
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public String getViewName() { |
| 40 | 46 | return viewName; |
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} |
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public void setViewName(String viewName) { |
| 44 | 2 | this.viewName = viewName; |
| 45 | 2 | } |
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public String getSelectQuery() { |
| 48 | 45 | return selectQuery; |
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} |
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public void setSelectQuery(String selectQuery) { |
| 52 | 1 | this.selectQuery = selectQuery; |
| 53 | 1 | } |
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public Boolean getReplaceIfExists() { |
| 56 | 45 | return replaceIfExists; |
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} |
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public void setReplaceIfExists(Boolean replaceIfExists) { |
| 60 | 0 | this.replaceIfExists = replaceIfExists; |
| 61 | 0 | } |
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public SqlStatement[] generateStatements(Database database) { |
| 64 | 45 | List<SqlStatement> statements = new ArrayList<SqlStatement>(); |
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| 66 | 45 | boolean replaceIfExists = false; |
| 67 | 45 | if (getReplaceIfExists() != null && getReplaceIfExists()) { |
| 68 | 0 | replaceIfExists = true; |
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} |
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| 71 | 45 | if (!supportsReplaceIfExistsOption(database) && replaceIfExists) { |
| 72 | 0 | statements.add(new DropViewStatement(getSchemaName() == null ? database.getDefaultSchemaName() |
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: getSchemaName(), getViewName())); |
| 74 | 0 | statements.add(new CreateViewStatement(getSchemaName() == null ? database.getDefaultSchemaName() |
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: getSchemaName(), getViewName(), getSelectQuery(), false)); |
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} else { |
| 77 | 45 | statements.add(new CreateViewStatement(getSchemaName() == null ? database.getDefaultSchemaName() |
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: getSchemaName(), getViewName(), getSelectQuery(), replaceIfExists)); |
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} |
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| 81 | 45 | return statements.toArray(new SqlStatement[statements.size()]); |
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} |
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public String getConfirmationMessage() { |
| 85 | 1 | return "View " + getViewName() + " created"; |
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} |
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@Override |
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protected Change[] createInverses() { |
| 90 | 0 | DropViewChange inverse = new DropViewChange(); |
| 91 | 0 | inverse.setViewName(getViewName()); |
| 92 | 0 | inverse.setSchemaName(getSchemaName()); |
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| 94 | 0 | return new Change[] { inverse }; |
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} |
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private boolean supportsReplaceIfExistsOption(Database database) { |
| 98 | 45 | return !(database instanceof SQLiteDatabase || database instanceof MSSQLDatabase); |
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} |
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} |