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This library is a fork of Apache DdlUtils. DdlUtils is a small, easy-to-use component for working with Database Definition (DDL) files.
package org.jumpmind.symmetric.ddl.model;
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*/
import java.io.Serializable;
import java.math.BigDecimal;
import java.sql.Date;
import java.sql.Time;
import java.sql.Timestamp;
import java.sql.Types;
import org.apache.commons.beanutils.ConvertUtils;
import org.apache.commons.lang.builder.EqualsBuilder;
import org.apache.commons.lang.builder.HashCodeBuilder;
import org.jumpmind.symmetric.ddl.util.Jdbc3Utils;
/**
* Represents a column in the database model.
*
* @version $Revision: 463305 $
*/
public class Column implements Cloneable, Serializable {
/** Unique ID for serialization purposes. */
private static final long serialVersionUID = -6226348998874210093L;
/** The name of the column. */
private String name;
/**
* The java name of the column (optional and unused by DdlUtils, for Torque
* compatibility).
*/
private String javaName;
/** The column's description. */
private String description;
/** Whether the column is a primary key column. */
private boolean primaryKey;
/**
* Whether the column is required, ie. it must not contain NULL
* .
*/
private boolean required;
/** Whether the column's value is incremented automatically. */
private boolean autoIncrement;
/** The JDBC type code, one of the constants in {@link java.sql.Types}. */
private int typeCode;
/** The name of the JDBC type. */
private String type;
/** The size of the column for JDBC types that require/support this. */
private String size;
/** The size of the column for JDBC types that require/support this. */
private Integer sizeAsInt;
/** The scale of the column for JDBC types that require/support this. */
private int scale;
/** The default value. */
private String defaultValue;
private String jdbcTypeName;
private boolean distributionKey;
/**
* Returns the name of the column.
*
* @return The name
*/
public String getName() {
return name;
}
/**
* Sets the name of the column.
*
* @param name
* The name
*/
public void setName(String name) {
this.name = name;
}
/**
* Returns the java name of the column. This property is unused by DdlUtils
* and only for Torque compatibility.
*
* @return The java name
*/
public String getJavaName() {
return javaName;
}
/**
* Sets the java name of the column. This property is unused by DdlUtils and
* only for Torque compatibility.
*
* @param javaName
* The java name
*/
public void setJavaName(String javaName) {
this.javaName = javaName;
}
/**
* Returns the description of the column.
*
* @return The description
*/
public String getDescription() {
return description;
}
/**
* Sets the description of the column.
*
* @param description
* The description
*/
public void setDescription(String description) {
this.description = description;
}
/**
* Determines whether this column is a primary key column.
*
* @return true if this column is a primary key column
*/
public boolean isPrimaryKey() {
return primaryKey;
}
/**
* Specifies whether this column is a primary key column.
*
* @param primaryKey
* true if this column is a primary key column
*/
public void setPrimaryKey(boolean primaryKey) {
this.primaryKey = primaryKey;
}
/**
* Determines whether this column is a required column, ie. that it is not
* allowed to contain NULL values.
*
* @return true if this column is a required column
*/
public boolean isRequired() {
return required;
}
/**
* Specifies whether this column is a required column, ie. that it is not
* allowed to contain NULL values.
*
* @param required
* true if this column is a required column
*/
public void setRequired(boolean required) {
this.required = required;
}
/**
* Determines whether this column is an auto-increment column.
*
* @return true if this column is an auto-increment column
*/
public boolean isAutoIncrement() {
return autoIncrement;
}
/**
* Specifies whether this column is an auto-increment column.
*
* @param autoIncrement
* true if this column is an auto-increment column
*/
public void setAutoIncrement(boolean autoIncrement) {
this.autoIncrement = autoIncrement;
}
/**
* Returns the code (one of the constants in {@link java.sql.Types}) of the
* JDBC type of the column.
*
* @return The type code
*/
public int getTypeCode() {
return typeCode;
}
/**
* Sets the code (one of the constants in {@link java.sql.Types}) of the
* JDBC type of the column.
*
* @param typeCode
* The type code
*/
public void setTypeCode(int typeCode) {
this.type = TypeMap.getJdbcTypeName(typeCode);
if (this.type == null) {
throw new ModelException("Unknown JDBC type code " + typeCode);
}
this.typeCode = typeCode;
}
/**
* Returns the JDBC type of the column.
*
* @return The type
*/
public String getType() {
return type;
}
/**
* Sets the JDBC type of the column.
*
* @param type
* The type
*/
public void setType(String type) {
Integer typeCode = TypeMap.getJdbcTypeCode(type);
if (typeCode == null) {
throw new ModelException("Unknown JDBC type " + type);
} else {
this.typeCode = typeCode.intValue();
// we get the corresponding string value from the TypeMap in order
// to detect extension types which we don't want in the model
this.type = TypeMap.getJdbcTypeName(typeCode);
}
}
/**
* Determines whether this column is of a numeric type.
*
* @return true if this column is of a numeric type
*/
public boolean isOfNumericType() {
return TypeMap.isNumericType(getTypeCode());
}
/**
* Determines whether this column is of a text type.
*
* @return true if this column is of a text type
*/
public boolean isOfTextType() {
return TypeMap.isTextType(getTypeCode());
}
/**
* Determines whether this column is of a binary type.
*
* @return true if this column is of a binary type
*/
public boolean isOfBinaryType() {
return TypeMap.isBinaryType(getTypeCode());
}
/**
* Determines whether this column is of a special type.
*
* @return true if this column is of a special type
*/
public boolean isOfSpecialType() {
return TypeMap.isSpecialType(getTypeCode());
}
/**
* Returns the size of the column.
*
* @return The size
*/
public String getSize() {
return size;
}
/**
* Returns the size of the column as an integer.
*
* @return The size as an integer
*/
public int getSizeAsInt() {
return sizeAsInt == null ? 0 : sizeAsInt.intValue();
}
/**
* Sets the size of the column. This is either a simple integer value or a
* comma-separated pair of integer values specifying the size and scale.
*
* @param size
* The size
*/
public void setSize(String size) {
if (size != null) {
int pos = size.indexOf(",");
this.size = size;
if (pos < 0) {
scale = 0;
sizeAsInt = new Integer(size);
} else {
sizeAsInt = new Integer(size.substring(0, pos));
scale = Integer.parseInt(size.substring(pos + 1));
}
} else {
size = null;
sizeAsInt = null;
scale = 0;
}
}
/**
* Returns the scale of the column.
*
* @return The scale
*/
public int getScale() {
return scale;
}
/**
* Sets the scale of the column.
*
* @param scale
* The scale
*/
public void setScale(int scale) {
setSizeAndScale(getSizeAsInt(), scale);
}
/**
* Sets both the size and scale.
*
* @param size
* The size
* @param scale
* The scale
*/
public void setSizeAndScale(int size, int scale) {
sizeAsInt = new Integer(size);
this.scale = scale;
this.size = String.valueOf(size);
if (scale > 0) {
this.size += "," + scale;
}
}
/**
* Returns the precision radix of the column.
*
* @return The precision radix
*/
public int getPrecisionRadix() {
return getSizeAsInt();
}
/**
* Sets the precision radix of the column.
*
* @param precisionRadix
* The precision radix
*/
public void setPrecisionRadix(int precisionRadix) {
sizeAsInt = new Integer(precisionRadix);
size = String.valueOf(precisionRadix);
}
/**
* Returns the default value of the column.
*
* @return The default value
*/
public String getDefaultValue() {
return defaultValue;
}
/**
* Tries to parse the default value of the column and returns it as an
* object of the corresponding java type. If the value could not be parsed,
* then the original definition is returned.
*
* @return The parsed default value
*/
public Object getParsedDefaultValue() {
if ((defaultValue != null) && (defaultValue.length() > 0)) {
try {
switch (typeCode) {
case Types.TINYINT:
case Types.SMALLINT:
return new Short(defaultValue);
case Types.INTEGER:
return new Integer(defaultValue);
case Types.BIGINT:
return new Long(defaultValue);
case Types.DECIMAL:
case Types.NUMERIC:
return new BigDecimal(defaultValue);
case Types.REAL:
return new Float(defaultValue);
case Types.DOUBLE:
case Types.FLOAT:
return new Double(defaultValue);
case Types.DATE:
return Date.valueOf(defaultValue);
case Types.TIME:
return Time.valueOf(defaultValue);
case Types.TIMESTAMP:
return Timestamp.valueOf(defaultValue);
case Types.BIT:
return ConvertUtils.convert(defaultValue, Boolean.class);
default:
if (Jdbc3Utils.supportsJava14JdbcTypes()
&& (typeCode == Jdbc3Utils.determineBooleanTypeCode())) {
return ConvertUtils.convert(defaultValue, Boolean.class);
}
break;
}
} catch (NumberFormatException ex) {
return null;
} catch (IllegalArgumentException ex) {
return null;
}
}
return defaultValue;
}
/**
* Sets the default value of the column. Note that this expression will be
* used within quotation marks when generating the column, and thus is
* subject to the conversion rules of the target database.
*
* @param defaultValue
* The default value
*/
public void setDefaultValue(String defaultValue) {
this.defaultValue = defaultValue;
}
/**
* {@inheritDoc}
*/
public Object clone() throws CloneNotSupportedException {
Column result = (Column) super.clone();
result.name = name;
result.javaName = javaName;
result.primaryKey = primaryKey;
result.required = required;
result.autoIncrement = autoIncrement;
result.typeCode = typeCode;
result.type = type;
result.size = size;
result.defaultValue = defaultValue;
result.scale = scale;
result.size = size;
result.sizeAsInt = sizeAsInt;
return result;
}
/**
* {@inheritDoc}
*/
public boolean equals(Object obj) {
if (obj instanceof Column) {
Column other = (Column) obj;
EqualsBuilder comparator = new EqualsBuilder();
// Note that this compares case sensitive
comparator.append(name, other.name);
comparator.append(primaryKey, other.primaryKey);
comparator.append(required, other.required);
comparator.append(autoIncrement, other.autoIncrement);
comparator.append(typeCode, other.typeCode);
comparator.append(getParsedDefaultValue(), other.getParsedDefaultValue());
// comparing the size makes only sense for types where it is
// relevant
if ((typeCode == Types.NUMERIC) || (typeCode == Types.DECIMAL)) {
comparator.append(size, other.size);
comparator.append(scale, other.scale);
} else if ((typeCode == Types.CHAR) || (typeCode == Types.VARCHAR)
|| (typeCode == Types.BINARY) || (typeCode == Types.VARBINARY)) {
comparator.append(size, other.size);
}
return comparator.isEquals();
} else {
return false;
}
}
/**
* {@inheritDoc}
*/
public int hashCode() {
HashCodeBuilder builder = new HashCodeBuilder(17, 37);
builder.append(name);
builder.append(primaryKey);
builder.append(required);
builder.append(autoIncrement);
builder.append(typeCode);
builder.append(type);
builder.append(scale);
builder.append(getParsedDefaultValue());
if (!TypeMap.isNumericType(typeCode)) {
builder.append(size);
}
return builder.toHashCode();
}
/**
* {@inheritDoc}
*/
public String toString() {
StringBuffer result = new StringBuffer();
result.append("Column [name=");
result.append(getName());
result.append("; type=");
result.append(getType());
result.append("]");
return result.toString();
}
/**
* Returns a verbose string representation of this column.
*
* @return The string representation
*/
public String toVerboseString() {
StringBuffer result = new StringBuffer();
result.append("Column [name=");
result.append(getName());
result.append("; javaName=");
result.append(getJavaName());
result.append("; type=");
result.append(getType());
result.append("; typeCode=");
result.append(getTypeCode());
result.append("; size=");
result.append(getSize());
result.append("; required=");
result.append(isRequired());
result.append("; primaryKey=");
result.append(isPrimaryKey());
result.append("; autoIncrement=");
result.append(isAutoIncrement());
result.append("; defaultValue=");
result.append(getDefaultValue());
result.append("; precisionRadix=");
result.append(getPrecisionRadix());
result.append("; scale=");
result.append(getScale());
result.append("]");
return result.toString();
}
public void setJdbcTypeName(String jdbcTypeName) {
this.jdbcTypeName = jdbcTypeName;
}
public String getJdbcTypeName() {
return jdbcTypeName;
}
public boolean isDistributionKey() {
return distributionKey;
}
public void setDistributionKey(boolean distributionKey) {
this.distributionKey = distributionKey;
}
}
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