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Add unit tests for ColumnDescriptor, prior to migration. (#1964)
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* Add unit tests for `ColumnDescriptor`, prior to migration.

* Code review feedback.

* Convert `DBInfo` to Kotlin, and add unit tests.
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@tychobrailleur
tychobrailleur authored Nov 28, 2023
1 parent 7aca87d commit 247a2ed
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257 changes: 130 additions & 127 deletions src/main/java/core/db/ColumnDescriptor.java
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Original file line number Diff line number Diff line change
Expand Up @@ -5,135 +5,138 @@
import java.util.function.Function;

/**
*
* @author Thorsten Dietz
*
*/
public final class ColumnDescriptor {

private final String columnName;
private final int type;
private final int length;
private final boolean nullable;
private final boolean primaryKey;

public Function<Object, Object> getter;
public BiConsumer<Object, Object> setter;

public ColumnDescriptor(Builder builder) {
this.columnName=builder.columnName;
this.type=builder.type;
this.length=builder.length;
this.nullable= builder.nullable;
this.primaryKey=builder.primaryKey;
this.getter=builder.getter;
this.setter=builder.setter;
}

public static class Builder {
private String columnName;
private int type = Types.VARCHAR;
private int length;
private boolean nullable = true;
private boolean primaryKey = false;

private Function<Object, Object> getter;
private BiConsumer<Object, Object> setter;

public static Builder newInstance() {
return new Builder();
}

public Builder setColumnName(String columnName) {
this.columnName = columnName;
return this;
}

public Builder setType(int type) {
this.type = type;
return this;
}

public Builder setLength(int length) {
this.length = length;
return this;
}

public Builder isNullable(boolean nullable) {
this.nullable = nullable;
return this;
}

public Builder isPrimaryKey(boolean primaryKey) {
this.primaryKey = primaryKey;
return this;
}

public Builder setGetter(Function<Object, Object> getter) {
this.getter = getter;
return this;
}

public Builder setSetter(BiConsumer<Object, Object> setter) {
this.setter = setter;
return this;
}

public ColumnDescriptor build() {
return new ColumnDescriptor(this);
}
}
public ColumnDescriptor(String columnName,int type,boolean nullable){
this(columnName,type,nullable,0);
}

public ColumnDescriptor(String columnName,int type,boolean nullable,int length){
this(columnName,type,nullable,false,length);
}

public ColumnDescriptor(String columnName,int type,boolean nullable, boolean primaryKey){
this(columnName,type,nullable,primaryKey,0);
}
public ColumnDescriptor(String columnName,int type,boolean nullable, boolean primaryKey, int length){
this.columnName = columnName;
this.type = type;
this.nullable = nullable;
this.primaryKey = primaryKey;
this.length = length;
}
public String getColumnName() {
return columnName;
}

public boolean isNullable() {
return nullable;
}

public boolean isPrimaryKey() {
return primaryKey;
}

public int getType() {
return type;
}

String getCreateString(DBInfo dbInfo){
StringBuilder sql = new StringBuilder(50);
sql.append(" ");
sql.append(getColumnName());
sql.append(" ");
sql.append(dbInfo.getTypeName(getType()));
if(length>0){
sql.append("(");
sql.append(length);
sql.append(")");
}
if(! nullable)
sql.append(" NOT NULL");
if(primaryKey)
sql.append(" PRIMARY KEY");
return sql.toString();
}


private final String columnName;
private final int type;
private final int length;
private final boolean nullable;
private final boolean primaryKey;

public Function<Object, Object> getter;
public BiConsumer<Object, Object> setter;

public ColumnDescriptor(Builder builder) {
this.columnName = builder.columnName;
this.type = builder.type;
this.length = builder.length;
this.nullable = builder.nullable;
this.primaryKey = builder.primaryKey;
this.getter = builder.getter;
this.setter = builder.setter;
}

public static class Builder {
private String columnName;
private int type = Types.VARCHAR;
private int length;
private boolean nullable = true;
private boolean primaryKey = false;

private Function<Object, Object> getter;
private BiConsumer<Object, Object> setter;

public static Builder newInstance() {
return new Builder();
}

public Builder setColumnName(String columnName) {
this.columnName = columnName;
return this;
}

public Builder setType(int type) {
this.type = type;
return this;
}

public Builder setLength(int length) {
this.length = length;
return this;
}

public Builder isNullable(boolean nullable) {
this.nullable = nullable;
return this;
}

public Builder isPrimaryKey(boolean primaryKey) {
this.primaryKey = primaryKey;
return this;
}

public Builder setGetter(Function<Object, Object> getter) {
this.getter = getter;
return this;
}

public Builder setSetter(BiConsumer<Object, Object> setter) {
this.setter = setter;
return this;
}

public ColumnDescriptor build() {
return new ColumnDescriptor(this);
}
}

public ColumnDescriptor(String columnName, int type, boolean nullable) {
this(columnName, type, nullable, 0);
}

public ColumnDescriptor(String columnName, int type, boolean nullable, int length) {
this(columnName, type, nullable, false, length);
}

public ColumnDescriptor(String columnName, int type, boolean nullable, boolean primaryKey) {
this(columnName, type, nullable, primaryKey, 0);
}

public ColumnDescriptor(String columnName, int type, boolean nullable, boolean primaryKey, int length) {
this.columnName = columnName;
this.type = type;
this.nullable = nullable;
this.primaryKey = primaryKey;
this.length = length;
}

public String getColumnName() {
return columnName;
}

public boolean isNullable() {
return nullable;
}

public boolean isPrimaryKey() {
return primaryKey;
}

public int getType() {
return type;
}

String getCreateString(DBInfo dbInfo) {
StringBuilder sql = new StringBuilder(50);
sql.append(" ");
sql.append(getColumnName());
sql.append(" ");
sql.append(dbInfo.getTypeName(getType()));

if (length > 0) {
sql.append("(");
sql.append(length);
sql.append(")");
}
if (!nullable)
sql.append(" NOT NULL");

if (primaryKey)
sql.append(" PRIMARY KEY");
return sql.toString();
}


}
75 changes: 0 additions & 75 deletions src/main/java/core/db/DBInfo.java
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