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[#1339] feat(table): Add index for tables.
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16 changes: 16 additions & 0 deletions
16
api/src/main/java/com/datastrato/gravitino/rel/expressions/Indexes/Index.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,16 @@ | ||
| /* | ||
| * Copyright 2024 Datastrato Pvt Ltd. | ||
| * This software is licensed under the Apache License version 2. | ||
| */ | ||
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| package com.datastrato.gravitino.rel.expressions.Indexes; | ||
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| /** Represents an index on a table. */ | ||
| public interface Index { | ||
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| /** @return The name of the index. */ | ||
| String name(); | ||
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| /** @return Returns the field name under the table contained in the index. eg: table.id */ | ||
| String[][] fieldNames(); | ||
| } |
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57 changes: 57 additions & 0 deletions
57
common/src/main/java/com/datastrato/gravitino/dto/rel/indexes/PrimaryKeyDTO.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,57 @@ | ||
| /* | ||
| * Copyright 2024 Datastrato Pvt Ltd. | ||
| * This software is licensed under the Apache License version 2. | ||
| */ | ||
| package com.datastrato.gravitino.dto.rel.indexes; | ||
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| import com.datastrato.gravitino.rel.expressions.Indexes.Index; | ||
| import com.google.common.base.Preconditions; | ||
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| public class PrimaryKeyDTO implements Index { | ||
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| private final String name; | ||
| private final String fieldName; | ||
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| public PrimaryKeyDTO(String name, String fieldName) { | ||
| this.name = name; | ||
| this.fieldName = fieldName; | ||
| } | ||
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| @Override | ||
| public String name() { | ||
| return name; | ||
| } | ||
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| @Override | ||
| public String[][] fieldNames() { | ||
| return new String[][] {new String[] {fieldName}}; | ||
| } | ||
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| public static Builder builder() { | ||
| return new Builder(); | ||
| } | ||
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| public static class Builder<S extends PrimaryKeyDTO.Builder> { | ||
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| protected String name; | ||
| protected String fieldName; | ||
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| public Builder() {} | ||
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| public S withName(String name) { | ||
| this.name = name; | ||
| return (S) this; | ||
| } | ||
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| public S withFieldName(String fieldName) { | ||
| this.fieldName = fieldName; | ||
| return (S) this; | ||
| } | ||
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| public PrimaryKeyDTO build() { | ||
| Preconditions.checkNotNull(name, "Index name cannot be null"); | ||
| Preconditions.checkNotNull(fieldName, "Primary key must specify the field name"); | ||
| return new PrimaryKeyDTO(name, fieldName); | ||
| } | ||
| } | ||
| } |
57 changes: 57 additions & 0 deletions
57
common/src/main/java/com/datastrato/gravitino/dto/rel/indexes/UniqueDTO.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,57 @@ | ||
| /* | ||
| * Copyright 2024 Datastrato Pvt Ltd. | ||
| * This software is licensed under the Apache License version 2. | ||
| */ | ||
| package com.datastrato.gravitino.dto.rel.indexes; | ||
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| import com.datastrato.gravitino.rel.expressions.Indexes.Index; | ||
| import com.google.common.base.Preconditions; | ||
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| public class UniqueDTO implements Index { | ||
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| private final String name; | ||
| private final String fieldName; | ||
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| public UniqueDTO(String name, String fieldName) { | ||
| this.name = name; | ||
| this.fieldName = fieldName; | ||
| } | ||
|
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| @Override | ||
| public String name() { | ||
| return name; | ||
| } | ||
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| @Override | ||
| public String[][] fieldNames() { | ||
| return new String[][] {new String[] {fieldName}}; | ||
| } | ||
|
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| public static Builder builder() { | ||
| return new Builder(); | ||
| } | ||
|
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| public static class Builder<S extends Builder> { | ||
|
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| protected String name; | ||
| protected String fieldName; | ||
|
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| public Builder() {} | ||
|
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| public S withName(String name) { | ||
| this.name = name; | ||
| return (S) this; | ||
| } | ||
|
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| public S withFieldName(String fieldName) { | ||
| this.fieldName = fieldName; | ||
| return (S) this; | ||
| } | ||
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| public PrimaryKeyDTO build() { | ||
| Preconditions.checkNotNull(name, "Index name cannot be null"); | ||
| Preconditions.checkNotNull(fieldName, "Unique index must specify the field name"); | ||
| return new PrimaryKeyDTO(name, fieldName); | ||
| } | ||
| } | ||
| } |
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