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SchemaCrawler is an open-source Java API that makes working with database metadata as easy as working with plain old Java objects. SchemaCrawler is also a database schema discovery and comprehension, and schema documentation tool. You can search for database schema objects using regular expressions, and output the schema and data in a readable text format. The output is designed to be diff-ed against other database schemas.
/*
========================================================================
SchemaCrawler
http://www.schemacrawler.com
Copyright (c) 2000-2016, Sualeh Fatehi .
All rights reserved.
------------------------------------------------------------------------
SchemaCrawler is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
SchemaCrawler and the accompanying materials are made available under
the terms of the Eclipse Public License v1.0, GNU General Public License
v3 or GNU Lesser General Public License v3.
You may elect to redistribute this code under any of these licenses.
The Eclipse Public License is available at:
http://www.eclipse.org/legal/epl-v10.html
The GNU General Public License v3 and the GNU Lesser General Public
License v3 are available at:
http://www.gnu.org/licenses/
========================================================================
*/
package schemacrawler.schema;
import static sf.util.Utility.convertForComparison;
import static sf.util.Utility.isBlank;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
public final class SchemaReference
implements Schema
{
private static final long serialVersionUID = -5309848447599233878L;
private final String catalogName;
private final String schemaName;
private final Map attributeMap = new HashMap<>();
public SchemaReference()
{
this(null, null);
}
public SchemaReference(final String catalogName, final String schemaName)
{
this.catalogName = catalogName;
this.schemaName = schemaName;
}
@Override
public int compareTo(final NamedObject otherSchemaRef)
{
if (otherSchemaRef == null)
{
return -1;
}
else
{
return convertForComparison(getFullName())
.compareTo(convertForComparison(otherSchemaRef.getFullName()));
}
}
@Override
public boolean equals(final Object obj)
{
if (this == obj)
{
return true;
}
if (obj == null)
{
return false;
}
if (getClass() != obj.getClass())
{
return false;
}
final SchemaReference other = (SchemaReference) obj;
if (attributeMap == null)
{
if (other.attributeMap != null)
{
return false;
}
}
else if (!attributeMap.equals(other.attributeMap))
{
return false;
}
if (catalogName == null)
{
if (other.catalogName != null)
{
return false;
}
}
else if (!catalogName.equals(other.catalogName))
{
return false;
}
if (schemaName == null)
{
if (other.schemaName != null)
{
return false;
}
}
else if (!schemaName.equals(other.schemaName))
{
return false;
}
return true;
}
/**
* {@inheritDoc}
*
* @see schemacrawler.schema.AttributedObject#getAttribute(java.lang.String,
* java.lang.Object)
*/
@Override
public final T getAttribute(final String name, final T defaultValue)
{
final Object attributeValue = attributeMap.get(name);
if (attributeValue == null)
{
return defaultValue;
}
else
{
try
{
return (T) attributeValue;
}
catch (final ClassCastException e)
{
return defaultValue;
}
}
}
/**
* {@inheritDoc}
*
* @see schemacrawler.schema.NamedObjectWithAttributes#getAttributes()
*/
@Override
public final Map getAttributes()
{
return Collections.unmodifiableMap(attributeMap);
}
@Override
public String getCatalogName()
{
return catalogName;
}
@Override
public String getFullName()
{
final StringBuilder buffer = new StringBuilder(64);
final boolean hasCatalogName = !isBlank(catalogName);
final boolean hasSchemaName = !isBlank(getName());
if (hasCatalogName)
{
buffer.append(catalogName);
}
if (hasCatalogName && hasSchemaName)
{
buffer.append(".");
}
if (hasSchemaName)
{
buffer.append(getName());
}
return buffer.toString();
}
@Override
public String getLookupKey()
{
return getFullName();
}
@Override
public String getName()
{
return schemaName;
}
@Override
public String getRemarks()
{
return "";
}
/**
* {@inheritDoc}
*
* @see schemacrawler.schema.AttributedObject#hasAttribute(java.lang.String)
*/
@Override
public boolean hasAttribute(final String name)
{
return attributeMap.containsKey(name);
}
@Override
public int hashCode()
{
final int prime = 31;
int result = 1;
result = prime * result
+ (attributeMap == null? 0: attributeMap.hashCode());
result = prime * result + (catalogName == null? 0: catalogName.hashCode());
result = prime * result + (schemaName == null? 0: schemaName.hashCode());
return result;
}
/**
* {@inheritDoc}
*
* @see schemacrawler.schema.NamedObjectWithAttributes#hasRemarks()
*/
@Override
public boolean hasRemarks()
{
return false;
}
/**
* {@inheritDoc}
*/
@Override
public final void removeAttribute(final String name)
{
if (!isBlank(name))
{
attributeMap.remove(name);
}
}
/**
* {@inheritDoc}
*
* @see NamedObjectWithAttributes#setAttribute(String, Object)
*/
@Override
public final void setAttribute(final String name, final Object value)
{
if (!isBlank(name))
{
if (value == null)
{
attributeMap.remove(name);
}
else
{
attributeMap.put(name, value);
}
}
}
@Override
public String toString()
{
return getFullName();
}
}