io.ebeaninternal.server.deploy.IndexDefinition Maven / Gradle / Ivy
package io.ebeaninternal.server.deploy;
/**
* Holds multiple column unique constraints defined for an entity.
*/
public class IndexDefinition {
private final String[] columns;
private final String name;
private final boolean unique;
/**
* A single column index.
*/
public IndexDefinition(String column, String name, boolean unique) {
this.columns = new String[]{column};
this.unique = unique;
this.name = name;
}
public IndexDefinition(String[] columns, String name, boolean unique) {
this.columns = columns;
this.unique = unique;
this.name = name;
}
/**
* Create a unique constraint given the column names.
*/
public IndexDefinition(String[] columns) {
this.columns = columns;
this.unique = true;
this.name = null;
}
/**
* Return true if this is a unique constraint.
*/
public boolean isUnique() {
return unique;
}
/**
* Return the index name (can be null).
*/
public String getName() {
return name;
}
/**
* Return the columns that make up this unique constraint.
*/
public String[] getColumns() {
return columns;
}
}