org.ehrbase.aql.definition.ConstantDefinition Maven / Gradle / Ivy

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/*
 * Copyright (c) 2019 vitasystems GmbH and Hannover Medical School.
 *
 * This file is part of project EHRbase
 *
 * Licensed 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
 *
 *     https://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.
 */
package org.ehrbase.aql.definition;

import java.util.ArrayList;
import java.util.List;
import java.util.Set;
import org.jooq.DataType;

/**
 * Container of a variable (symbol) with its path and alias (AS 'alias')
 * Created by christian on 5/3/2016.
 */
public class ConstantDefinition implements I_VariableDefinition {

    private String alias;
    private String path;
    private Object value;

    public ConstantDefinition(Object value, String alias) {
        this.value = value;
        this.alias = alias;
        if (alias != null) path = alias;
    }

    @Override
    public String getPath() {
        return path;
    }

    @Override
    public String getAlias() {
        return alias;
    }

    @Override
    public String getIdentifier() {
        return null;
    }

    @Override
    public LateralJoinDefinition getLateralJoinDefinition(String templateId, int index) {
        return null;
    }

    @Override
    public int getLateralJoinsSize(String templateId) {
        return 0;
    }

    @Override
    public boolean isLateralJoinsEmpty(String templateId) {
        return false;
    }

    @Override
    public LateralJoinDefinition getLastLateralJoin(String templateId) {
        return null;
    }

    @Override
    public void setLateralJoinTable(String templateId, LateralJoinDefinition lateralJoinDefinition) {
        // n/a
    }

    @Override
    public String toString() {
        return value.toString();
    }

    @Override
    public boolean isConstant() {
        return true;
    }

    @Override
    public boolean isLateralJoin(String templateId) {
        return false;
    }

    @Override
    public Set getLateralJoinDefinitions(String templateId) {
        return null;
    }

    @Override
    public PredicateDefinition getPredicateDefinition() {
        return null;
    }

    @Override
    public void setSubstituteFieldVariable(String variableAlias) {
        // na
    }

    @Override
    public String getSubstituteFieldVariable() {
        return null;
    }

    @Override
    public void setSelectType(DataType castTypeAs) {
        // na
    }

    @Override
    public DataType getSelectType() {
        return null;
    }

    @Override
    public boolean isVoidAlias() {
        return false;
    }

    @Override
    public void setVoidAlias(boolean isVoidAlias) {
        // na
    }

    @Override
    public boolean isDistinct() {
        return false;
    }

    @Override
    public boolean isFunction() {
        return false;
    }

    @Override
    public boolean isExtension() {
        return false;
    }

    @Override
    public boolean isHidden() {
        return false;
    }

    @Override
    public List getFuncParameters() {
        return new ArrayList<>();
    }

    @Override
    public void setPath(String path) {
        this.path = path;
    }

    @Override
    public void setDistinct(boolean distinct) {
        // n/a
    }

    @Override
    public void setHidden(boolean hidden) {
        // n/a
    }

    @Override
    public I_VariableDefinition duplicate() {
        return new ConstantDefinition(this.value, this.alias);
    }

    @Override
    public void setAlias(String alias) {
        this.alias = alias;
    }

    public void setValue(Object value) {
        this.value = value;
    }

    public Object getValue() {
        return value;
    }
}