view flys-backend/src/main/java/de/intevation/flys/model/HYKFormation.java @ 5779:ebec12def170

Datacage: Add a pool of builders to make it multi threadable. XML DOM is not thread safe. Therefore the old implementation only allowed one thread to use the builder at a time. As the complexity of the configuration has increased over time this has become a bottleneck of the whole application because it took quiet some time to build a result. Furthermore the builder code path is visited very frequent. So many concurrent requests were piled up resulting in long waits for the users. To mitigate this problem a round robin pool of builders is used now. Each of the pooled builders has an independent copy of the XML template and can be run in parallel. The number of builders is determined by the system property 'flys.datacage.pool.size'. It defaults to 4.
author Sascha L. Teichmann <teichmann@intevation.de>
date Sun, 21 Apr 2013 12:48:09 +0200
parents 2ae732e2c65c
children
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package de.intevation.flys.model;

import java.io.Serializable;

import java.util.List;

import java.math.BigDecimal;

import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.Table;
import javax.persistence.GeneratedValue;
import javax.persistence.Column;
import javax.persistence.SequenceGenerator;
import javax.persistence.GenerationType;
import javax.persistence.OneToOne;
import javax.persistence.OneToMany;
import javax.persistence.OrderBy;
import javax.persistence.JoinColumn;

@Entity
@Table(name = "hyk_formations")
public class HYKFormation
implements   Serializable
{
    private Integer    id;
    private Integer    formationNum;
    private HYKEntry   entry;
    private BigDecimal top;
    private BigDecimal bottom;
    private BigDecimal distanceVL;
    private BigDecimal distanceHF;
    private BigDecimal distanceVR;

    private List<HYKFlowZone> zones;

    public HYKFormation() {
    }

    public HYKFormation(
        Integer    formationNum,
        HYKEntry   entry,
        BigDecimal top,
        BigDecimal bottom,
        BigDecimal distanceVL,
        BigDecimal distanceHF,
        BigDecimal distanceVR
    ) {
        this.formationNum = formationNum;
        this.entry        = entry;
        this.top          = top;
        this.bottom       = bottom;
        this.distanceVL   = distanceVL;
        this.distanceHF   = distanceHF;
        this.distanceVR   = distanceVR;
    }

    @Id
    @SequenceGenerator(
        name           = "SEQUENCE_HYK_FORMATIONS_ID_SEQ",
        sequenceName   = "HYK_FORMATIONS_ID_SEQ",
        allocationSize = 1)
    @GeneratedValue(
        strategy  = GenerationType.SEQUENCE,
        generator = "SEQUENCE_HYK_FORMATIONS_ID_SEQ")
    @Column(name = "id")
    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    @Column(name = "formation_num")
    public Integer getFormationNum() {
        return formationNum;
    }

    public void setFormationNum(Integer formationNum) {
        this.formationNum = formationNum;
    }

    @OneToOne
    @JoinColumn(name = "hyk_entry_id")
    public HYKEntry getEntry() {
        return entry;
    }

    public void setEntry(HYKEntry entry) {
        this.entry = entry;
    }

    @Column(name = "top")
    public BigDecimal getTop() {
        return top;
    }

    public void setTop(BigDecimal top) {
        this.top = top;
    }

    @Column(name = "bottom")
    public BigDecimal getBottom() {
        return bottom;
    }

    public void setBottom(BigDecimal bottom) {
        this.bottom = bottom;
    }

    @Column(name = "distance_vl")
    public BigDecimal getDistanceVL() {
        return distanceVL;
    }

    public void setDistanceVL(BigDecimal distanceVL) {
        this.distanceVL = distanceVL;
    }

    @Column(name = "distance_hf")
    public BigDecimal getDistanceHF() {
        return distanceHF;
    }

    public void setDistanceHF(BigDecimal distanceHF) {
        this.distanceHF = distanceHF;
    }

    @Column(name = "distance_vr")
    public BigDecimal getDistanceVR() {
        return distanceVR;
    }

    public void setDistanceVR(BigDecimal distanceVR) {
        this.distanceVR = distanceVR;
    }


    @OneToMany
    @OrderBy("a")
    @JoinColumn(name="formation_id")
    public List<HYKFlowZone> getZones() {
        return zones;
    }

    public void setZones(List<HYKFlowZone> zones) {
        this.zones = zones;
    }
}
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