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package liquibase.statement;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;

public class PrimaryKeyConstraint implements ColumnConstraint {

    private String constraintName;
    private boolean initiallyDeferred;
    private boolean deferrable;

    /**
     * Default value is true
     */
    private boolean validatePrimaryKey = true;

    // used for PK's index configuration
    private String tablespace;

    private final List columns = new ArrayList<>();

    public PrimaryKeyConstraint() {
    }

    public PrimaryKeyConstraint(String constraintName) {
        this.constraintName = constraintName;
    }

    public PrimaryKeyConstraint(String constraintName, boolean validatePrimaryKey) {
        this.constraintName = constraintName;
        setValidatePrimaryKey(validatePrimaryKey);
    }


    public String getConstraintName() {
        return constraintName;
    }

    public String getTablespace() {
        return tablespace;
    }

    public PrimaryKeyConstraint setTablespace(String tablespace) {
        this.tablespace = tablespace;
        return this;
    }

    public List getColumns() {
        return Collections.unmodifiableList(columns);
    }

    public PrimaryKeyConstraint addColumns(String... columns) {
        this.columns.addAll(Arrays.asList(columns));

        return this;
    }

    public boolean shouldValidatePrimaryKey() {
        return validatePrimaryKey;
    }

    public void setValidatePrimaryKey(boolean validatePrimaryKey) {
        this.validatePrimaryKey = validatePrimaryKey;
    }

    public boolean isInitiallyDeferred() {
        return initiallyDeferred;
    }

    public PrimaryKeyConstraint setInitiallyDeferred(boolean initiallyDeferred) {
        this.initiallyDeferred = initiallyDeferred;
        return this;
    }

    public boolean isDeferrable() {
        return deferrable;
    }

    public PrimaryKeyConstraint setDeferrable(boolean deferrable) {
        this.deferrable = deferrable;
        return this;
    }

}